Dyfyniad APA

O'CONNOR, J. (1956). Science vocabulary builder. Human Engineering laboratory.

Dyfyniad Arddull Chicago

O'CONNOR, Johnson. Science Vocabulary Builder. Boston: Human Engineering laboratory, 1956.

Dyfyniad MLA

O'CONNOR, Johnson. Science Vocabulary Builder. Human Engineering laboratory, 1956.

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