Dyfyniad APA

Dull, C. E., & Castka, J. F. (1962). Tests in chemistry 1962. Holt, Rinehart and Winston.

Dyfyniad Arddull Chicago

Dull, Charles E., and Joseph F. Castka. Tests in Chemistry 1962. New York: Holt, Rinehart and Winston, 1962.

Dyfyniad MLA

Dull, Charles E., and Joseph F. Castka. Tests in Chemistry 1962. Holt, Rinehart and Winston, 1962.

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