Dyfyniad APA

Halsey, W. D., & Friedman, E. (1982). Collier´s Encyclopedia: With Bibliography and Index. Macmillan.

Dyfyniad Arddull Chicago

Halsey, William D., and Emanuel Friedman. Collier´s Encyclopedia: With Bibliography and Index. New York: Macmillan, 1982.

Dyfyniad MLA

Halsey, William D., and Emanuel Friedman. Collier´s Encyclopedia: With Bibliography and Index. Macmillan, 1982.

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