Gaya APA

Crockett, J, U. (1980). The Time-Life Encyclopedia of Gardening: Bulbs (Cet 1). New York: Time-Life Books.

Gaya MLA

Crockett, James, Underwood. "The Time-Life Encyclopedia of Gardening: Bulbs". Cet 1 New York: Time-Life Books, 1980. Text.