APA (7th ed.) Citation

Não informado. (1981). ACP observer. American College of Physicians.

Chicago Style (17th ed.) Citation

Não informado. ACP Observer. Philadelphia, Pa: American College of Physicians, 1981.

MLA (8th ed.) Citation

Não informado. ACP Observer. American College of Physicians, 1981.

Warning: These citations may not always be 100% accurate.