APA
George N. Papanicolaou, . (1973). Diagnosis of Uterine Cancer by the Vaginal Smear. Washington: American Society for Microbiology.
Chicago
George N. Papanicolaou, . 1973. Diagnosis of Uterine Cancer by the Vaginal Smear. Washington: American Society for Microbiology.
Harvard
George N. Papanicolaou, . (1973). Diagnosis of Uterine Cancer by the Vaginal Smear. Washington: American Society for Microbiology.
MLA
George N. Papanicolaou, . Diagnosis of Uterine Cancer by the Vaginal Smear. Washington: American Society for Microbiology. 1973.