For multiple years of publication, separate the first and last year of publication by a hyphen. Do not shorten the second of the two years to the last two digits.
2002-2003
1997-1998
1999-2000
If months are given, place them after the year. Use English names for months and abbreviate them using the first three letters.
1999 Oct-2000 Mar
2002 Dec-2003 Jan
Separate multiple months of publication by a hyphen.
2005 Jan-Feb
1999 Dec-2000 Jan
Separate multiple seasons by a hyphen; for example, Fall-Winter. Do not abbreviate names of seasons.
Según:
Citing Medicine: The NLM Style Guide for Authors, Editors, and Publishers [Internet]. 2nd edition. Chapter 2: Books
Related:
General Rules for Date of Publication (required) for the Volume for Individual Volumes With a Separate Title and Separate Authors/Editors Vancouver Style
Specific Rules #1 for Date of Publication (required) for the Volume for Individual Volumes With a Separate Title and Separate Authors/Editors Vancouver Style: Multiple years of publication
Specific Rules #2 for Date of Publication (required) for the Volume for Individual Volumes With a Separate Title and Separate Authors/Editors Vancouver Style: Non-English names for months
Specific Rules #3 for Date of Publication (required) for the Volume for Individual Volumes With a Separate Title and Separate Authors/Editors Vancouver Style: Seasons instead of months
Specific Rules #4 for Date of Publication (required) for the Volume for Individual Volumes With a Separate Title and Separate Authors/Editors Vancouver Style: Date of publication and date of copyright
Specific Rules #5 for Date of Publication (required) for the Volume for Individual Volumes With a Separate Title and Separate Authors/Editors Vancouver Style: No date of publication, but a date of copyright
Specific Rules #6 for Date of Publication (required) for the Volume for Individual Volumes With a Separate Title and Separate Authors/Editors Vancouver Style: No date of publication or copyright can be found
Specific Rules #7 for Date of Publication (required) for the Volume for Individual Volumes With a Separate Title and Separate Authors/Editors Vancouver Style: Options for date of publication
Examples for Date of Publication (required) for the Volume for Individual Volumes With a Separate Title and Separate Authors/Editors Vancouver Style