Não informado. (1969). Professional Psychology. American Psychological Association.
Chicagoスタイル(17版)引用形式Não informado. Professional Psychology. Washington: American Psychological Association, 1969.
MLA(8版)引用形式Não informado. Professional Psychology. American Psychological Association, 1969.
警告: この引用は必ずしも正確ではありません.