Dyfyniad APA

Stunkel, K. R. (1981). National energy profiles. New York: CBS Educational and Professional Publishing.

Dyfyniad Arddull Chicago

Stunkel, Kennth R. National Energy Profiles. New York: CBS Educational and Professional Publishing, 1981.

Dyfyniad MLA

Stunkel, Kennth R. National Energy Profiles. New York: CBS Educational and Professional Publishing, 1981.

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