Dyfyniad APA

Heimler, C. H., & Price, J. (1974). Focus on physical science (2nd ed.). Charles E Merrill.

Dyfyniad Arddull Chicago

Heimler, Charles H., and Jack Price. Focus on Physical Science. 2nd ed. Ohio: Charles E Merrill, 1974.

Dyfyniad MLA

Heimler, Charles H., and Jack Price. Focus on Physical Science. 2nd ed. Charles E Merrill, 1974.

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