APA (7th ed.) Citation

Gunnell John. (1980). level chemistry. Butterworths.

Chicago Style (17th ed.) Citation

Gunnell John. Level Chemistry. London ; Boston: Butterworths, 1980.

MLA (9th ed.) Citation

Gunnell John. Level Chemistry. Butterworths, 1980.

Warning: These citations may not always be 100% accurate.