Παραπομπή σε μορφή APA (7η εκδ.)

CROCKETT, J. U. Lawns and ground covers: The time-life encyclopedia of gardening. Time-Life Books Alexandria.

Παραπομπή σε μορφή Chicago (17η εκδ.)

CROCKETT, James Underwood. Lawns and Ground Covers: The Time-life Encyclopedia of Gardening. Time-Life Books Alexandria.

Παραπομπή σε μορφή MLA (8th εκδ.)

CROCKETT, James Underwood. Lawns and Ground Covers: The Time-life Encyclopedia of Gardening. Time-Life Books Alexandria.