APA
Dr. R. Muschel, . (1978). Cancer Letters. U.S.A: The Williams & Wilkins Company.
Chicago
Dr. R. Muschel, . 1978. Cancer Letters. U.S.A: The Williams & Wilkins Company.
Harvard
Dr. R. Muschel, . (1978). Cancer Letters. U.S.A: The Williams & Wilkins Company.
MLA
Dr. R. Muschel, . Cancer Letters. U.S.A: The Williams & Wilkins Company. 1978.