Dyfyniad APA

Halsey, W. D. E., & Johnston, B. E. (1988). Colliers encyclopedia with bibliography and index.

Dyfyniad Arddull Chicago

Halsey, William D; Ed, and Bernard; Ed Johnston. Colliers Encyclopedia with Bibliography and Index. New Delhi, Macmillan Educational, 1988.

Dyfyniad MLA

Halsey, William D; Ed, and Bernard; Ed Johnston. Colliers Encyclopedia with Bibliography and Index. 1988.

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