Specific Rules #1 for Date of Publication (required) to Citing Entire Reports Vancouver Style: Multiple years of publication

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.

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Citing Medicine: The NLM Style Guide for Authors, Editors, and Publishers [Internet]. 2nd edition. Chapter 4: Scientific and Technical Reports