Dyfyniad APA

Lapedes, D. N., & Parker, S. P. (1977). McGraw Hill encyclopedia of science and technology (Ed.4.).

Dyfyniad Arddull Chicago

Lapedes, Daniel N., and Sybil P. Parker. McGraw Hill Encyclopedia of Science and Technology. Ed.4. New York, Mc Graw Hill, 1977.

Dyfyniad MLA

Lapedes, Daniel N., and Sybil P. Parker. McGraw Hill Encyclopedia of Science and Technology. Ed.4. 1977.

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