Cita APA (7a ed.)

ARIFIN, Z., & SUTOPO, A. (1997). English for nutrition 2. Language Center UMS.

Cita Chicago Style (17a ed.)

ARIFIN, Zaenal, y Anam SUTOPO. English for Nutrition 2. Surakarta: Language Center UMS, 1997.

Cita MLA (9a ed.)

ARIFIN, Zaenal, y Anam SUTOPO. English for Nutrition 2. Language Center UMS, 1997.