Mason, L. E. (1975). Letter: Unwanted pregnancies.
シカゴスタイル引用形Mason, L. E. Letter: Unwanted Pregnancies. 1975.
MLA引用形式Mason, L. E. Letter: Unwanted Pregnancies. 1975.
警告: この引用は必ずしも正確ではありません.
Mason, L. E. (1975). Letter: Unwanted pregnancies.
シカゴスタイル引用形Mason, L. E. Letter: Unwanted Pregnancies. 1975.
MLA引用形式Mason, L. E. Letter: Unwanted Pregnancies. 1975.