Dyfyniad APA

Gray, C. W., Sandifur, C. W., & Hanna, H. J. (1926). Fundamentals of chemistry. Houghton Mifflin Co.

Dyfyniad Arddull Chicago

Gray, Carl William, Claude Williamson Sandifur, and Howard J. Hanna. Fundamentals of Chemistry. New York [etc.]: Houghton Mifflin Co, 1926.

Dyfyniad MLA

Gray, Carl William, et al. Fundamentals of Chemistry. Houghton Mifflin Co, 1926.

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