Dyfyniad APA

CROCKETT, J. U., & THE EDITOR OF TIME-LIFE BOOK. (1978). Bulbs: (the time-life encyclopaedia of gardening). Time-Life Books.

Dyfyniad Arddull Chicago

CROCKETT, James Underwood, and THE EDITOR OF TIME-LIFE BOOK. Bulbs: (the Time-life Encyclopaedia of Gardening). Alexandria: Time-Life Books, 1978.

Dyfyniad MLA

CROCKETT, James Underwood, and THE EDITOR OF TIME-LIFE BOOK. Bulbs: (the Time-life Encyclopaedia of Gardening). Time-Life Books, 1978.

Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.