APA (7th ed.) Citation

Hawkins, D. W. (1971). Photochemical investigations in the tetracyclic triterpenoid field. [publisher not identified].

Chicago Style (17th ed.) Citation

Hawkins, David William. Photochemical Investigations in the Tetracyclic Triterpenoid Field. [Place of publication not identified]: [publisher not identified], 1971.

MLA (9th ed.) Citation

Hawkins, David William. Photochemical Investigations in the Tetracyclic Triterpenoid Field. [publisher not identified], 1971.