Dyfyniad APA

Markhom, E. C., & Smith, S. E. (1954). General chemistry. Houghton Mifflin.

Dyfyniad Arddull Chicago

Markhom, Edwin C., and Sherman E. Smith. General Chemistry. Boston: Houghton Mifflin, 1954.

Dyfyniad MLA

Markhom, Edwin C., and Sherman E. Smith. General Chemistry. Houghton Mifflin, 1954.

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