APA (7th ed.) Citation

Heywood, V. H., Heywood, C. A., & Wyse Jackson, P. (1991). International directory of botanical gardens V (Fifth edition.). Koeltz Scientific Books ; Koeltz Scientific Books (USA).

Chicago Style (17th ed.) Citation

Heywood, V. H., Christine A. Heywood, and Peter Wyse Jackson. International Directory of Botanical Gardens V. Fifth edition. Koenigstein/Germany : Champaign, Ill.: Koeltz Scientific Books ; Koeltz Scientific Books (USA), 1991.

MLA (9th ed.) Citation

Heywood, V. H., et al. International Directory of Botanical Gardens V. Fifth edition. Koeltz Scientific Books ; Koeltz Scientific Books (USA), 1991.