Dyfyniad APA

Atchinson, S. W. (1985). A naturalist's guide to hiking the Grand Canyon. Prentice-Hall.

Dyfyniad Arddull Chicago

Atchinson, Stewart W. A Naturalist's Guide to Hiking the Grand Canyon. Englewood Cliffs, New Jersey: Prentice-Hall, 1985.

Dyfyniad MLA

Atchinson, Stewart W. A Naturalist's Guide to Hiking the Grand Canyon. Prentice-Hall, 1985.

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