APA (7th ed.) Citation

Henderson, D. M., & Prentice, H. T. (1977). International directory of botanical gardens (3d ed.). Bohn, Scheltema & Holkema.

Chicago Style (17th ed.) Citation

Henderson, D. M., and H. T. Prentice. International Directory of Botanical Gardens. 3d ed. Utrecht: Bohn, Scheltema & Holkema, 1977.

MLA (9th ed.) Citation

Henderson, D. M., and H. T. Prentice. International Directory of Botanical Gardens. 3d ed. Bohn, Scheltema & Holkema, 1977.