APA (7th ed.) Citation

Crane, E., & Walker, P. (1984). Pollination directory for world crops. International Bee Research Association.

Chicago Style (17th ed.) Citation

Crane, Eva, and Penelope Walker. Pollination Directory for World Crops. London: International Bee Research Association, 1984.

MLA (9th ed.) Citation

Crane, Eva, and Penelope Walker. Pollination Directory for World Crops. International Bee Research Association, 1984.