Cita APA (7a ed.)

Schneider, Z., & Stroinski, A. (1987). Comprehensive B12: Chemistry, biochemistry, nutrition, ecology [and] medicine. Walter de Gruyter.

Cita Chicago Style (17a ed.)

Schneider, Zenon, y Andrzej Stroinski. Comprehensive B12: Chemistry, Biochemistry, Nutrition, Ecology [and] Medicine. Berlin [etc.]: Walter de Gruyter, 1987.

Cita MLA (9a ed.)

Schneider, Zenon, y Andrzej Stroinski. Comprehensive B12: Chemistry, Biochemistry, Nutrition, Ecology [and] Medicine. Walter de Gruyter, 1987.