Παραπομπή APA

Metcalfe, H. C., & Williams, J. E. C. (1974). Modern chemistry. Holt.

Παραπομπή Chicago Style

Metcalfe, H Clark, και John E Castka Williams. Modern Chemistry. New York: Holt, 1974.

Παραπομπή MLA

Metcalfe, H Clark, και John E Castka Williams. Modern Chemistry. Holt, 1974.