Ourisson, G. (1964). Tetracyclic triterpenes. Holden-day.
Tohutoru Kātū Chicago (17th ed.)Ourisson, Guy. Tetracyclic Triterpenes. San Franciscs: Holden-day, 1964.
Tohutoro MLA (9th ed.)Ourisson, Guy. Tetracyclic Triterpenes. Holden-day, 1964.
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