Cita APA (7a ed.)

Kral, D. M., & Hawkins, S. I. (1984). Crops as sources of nutrients for humans. SSSACSSAASA.

Cita Chicago Style (17a ed.)

Kral, D. M., y S. I. Hawkins. Crops as Sources of Nutrients for Humans. Wisconsin: SSSACSSAASA, 1984.

Cita MLA (8a ed.)

Kral, D. M., y S. I. Hawkins. Crops as Sources of Nutrients for Humans. SSSACSSAASA, 1984.