Citazione APA

Sills, D. L. (1968). International encyclopaedia of the social sciences, Vol.7. Collier Macmillan Publishers.

Stile di citazione Chicago

Sills, David L. International Encyclopaedia of the Social Sciences, Vol.7. London: Collier Macmillan Publishers, 1968.

Citazione MLA

Sills, David L. International Encyclopaedia of the Social Sciences, Vol.7. Collier Macmillan Publishers, 1968.