Gaya APA
Sills, D, L. (1972).
Internasional encylopedia of the social sciences volume 1 dan 16 [Referensi] .
Amerika :
Collier Macmillan Publishers.
Gaya MLA
Sills, David, L..
"Internasional encylopedia of the social sciences volume 1 dan 16 [Referensi]".
Amerika :
Collier Macmillan Publishers,
1972.
Buku.