Cita APA (7a ed.)

Marran, F., & Salter, C. L. (1999). World (4. [print].). SRA McGraw-Hill.

Cita Chicago Style (17a ed.)

Marran, F., y Cahty L. Salter. World. 4. [print]. Columbus, Ohio: SRA McGraw-Hill, 1999.

Cita MLA (9a ed.)

Marran, F., y Cahty L. Salter. World. 4. [print]. SRA McGraw-Hill, 1999.