Pfeiffer, J. P. (1950). The properties of asphaltic bitumen: With reference to its technical applications. New York: Elsevier Publishing Company.
Παραπομπή Chicago StylePfeiffer, J. Ph. The Properties of Asphaltic Bitumen: With Reference to Its Technical Applications. New York: Elsevier Publishing Company, 1950.
Παραπομπή MLAPfeiffer, J. Ph. The Properties of Asphaltic Bitumen: With Reference to Its Technical Applications. New York: Elsevier Publishing Company, 1950.
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