Cita APA (7th ed.)

Blocker, H. G. (1999). World philosophy. Prentice-Hall.

Cita Chicago (17th ed.)

Blocker, H. Gene. World Philosophy. Upper Saddle River, N.J: Prentice-Hall, 1999.

Cita MLA (9th ed.)

Blocker, H. Gene. World Philosophy. Prentice-Hall, 1999.