Solomon, C. R. (1971). Handbook of happiness. House of Solomon.
Chicagoスタイル(17版)引用形式Solomon, Charles R. Handbook of Happiness. Denver: House of Solomon, 1971.
MLA(9版)引用形式Solomon, Charles R. Handbook of Happiness. House of Solomon, 1971.
警告: この引用は必ずしも正確ではありません.