Schumann, E. A. (1921). Extra-uterine pregnancy. D. Appleton and company.
Chicagoスタイル(17版)引用形式Schumann, Edward Armin. Extra-uterine Pregnancy. New York, London: D. Appleton and company, 1921.
MLA(8版)引用形式Schumann, Edward Armin. Extra-uterine Pregnancy. D. Appleton and company, 1921.
警告: この引用は必ずしも正確ではありません.