Dyfyniad APA

Crockett, J. U., Grunwald, H. A., & Rosse, A. (1985). Lawns ground covers. Time-Life.

Dyfyniad Arddull Chicago

Crockett, James Underwood, Henry Anatole Grunwald, and Allianora Rosse. Lawns Ground Covers. Virginia: Time-Life, 1985.

Dyfyniad MLA

Crockett, James Underwood, et al. Lawns Ground Covers. Time-Life, 1985.

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