Dyfyniad APA

NISSAT. (1978). Introduction to reference work Vol. 1. Mc-graw-hill Book com.

Dyfyniad Arddull Chicago

NISSAT. Introduction to Reference Work Vol. 1. New York: Mc-graw-hill Book com, 1978.

Dyfyniad MLA

NISSAT. Introduction to Reference Work Vol. 1. Mc-graw-hill Book com, 1978.

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