Gaya APA

Heys, H, L., Hughes, E, D. (1960). An Introduction to Electronic Theory of Organic Compounds (Cet. 1.--). London: George G. Harrap.

Gaya MLA

Heys, H., L.., Hughes, E., D.. "An Introduction to Electronic Theory of Organic Compounds". Cet. 1.-- London: George G. Harrap, 1960. Text.