APA-ийн эшлэл(7 дахь хэвлэлт)

CROCKETT, J. U., & THE EDITOR OF TIME-LIFE BOOK. (1977). Perennial: (the time-life encyclopaedia of gardening). Time-Life Books.

Чикаго-гийн эшлэл (17 дахь хэвлэлт)

CROCKETT, James Underwood, ба THE EDITOR OF TIME-LIFE BOOK. Perennial: (the Time-life Encyclopaedia of Gardening). Alexandria: Time-Life Books, 1977.

MLA -ийн эшлэл (9 дэх хэвлэлт)

CROCKETT, James Underwood, ба THE EDITOR OF TIME-LIFE BOOK. Perennial: (the Time-life Encyclopaedia of Gardening). Time-Life Books, 1977.