Cita APA (7th ed.)

Seligman, E. R., & Johnson, A. (1937). Encyclopaedia of the Social Sciences. MacMillan.

Cita Chicago (17th ed.)

Seligman, Edwin R., i Alvin Johnson. Encyclopaedia of the Social Sciences. Nueva York: MacMillan, 1937.

Cita MLA (9th ed.)

Seligman, Edwin R., i Alvin Johnson. Encyclopaedia of the Social Sciences. MacMillan, 1937.