APA (7th ed.) Citation

Allen, E., & Cowdry, E. V. (1942). Problems of ageing: Biological and medical aspects. Williams & Wilkins.

Chicago Style (17th ed.) Citation

Allen, Edgar, and E. V. Cowdry. Problems of Ageing: Biological and Medical Aspects. Baltimore: Williams & Wilkins, 1942.

MLA (9th ed.) Citation

Allen, Edgar, and E. V. Cowdry. Problems of Ageing: Biological and Medical Aspects. Williams & Wilkins, 1942.