Dyfyniad APA

Buell, P., & Girard, J. (1994). Chemistry, an environmental perspective. Prentice Hall.

Dyfyniad Arddull Chicago

Buell, Phyllis, and James Girard. Chemistry, an Environmental Perspective. Englewood Cliffs, N.J.: Prentice Hall, 1994.

Dyfyniad MLA

Buell, Phyllis, and James Girard. Chemistry, an Environmental Perspective. Prentice Hall, 1994.

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