Dyfyniad APA

Lovelock, J. (1991). Gaia: The practical science of planetary medicine. Allen and Unwin.

Dyfyniad Arddull Chicago

Lovelock, James. Gaia: The Practical Science of Planetary Medicine. North Sydney: Allen and Unwin, 1991.

Dyfyniad MLA

Lovelock, James. Gaia: The Practical Science of Planetary Medicine. Allen and Unwin, 1991.

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