Cita APA (7a ed.)

Stępień,Arkadiusz, & Wojtkowiak,Katarzyna. (2015). Variability of mineral nitrogen contents in soil as affected by meat and bone meal used as fertilizer. Instituto de Investigaciones Agropecuarias, INIA.

Cita Chicago Style (17a ed.)

Stępień,Arkadiusz, y Wojtkowiak,Katarzyna. Variability of Mineral Nitrogen Contents in Soil as Affected by Meat and Bone Meal Used as Fertilizer. Instituto de Investigaciones Agropecuarias, INIA, 2015.

Cita MLA (8a ed.)

Stępień,Arkadiusz, y Wojtkowiak,Katarzyna. Variability of Mineral Nitrogen Contents in Soil as Affected by Meat and Bone Meal Used as Fertilizer. Instituto de Investigaciones Agropecuarias, INIA, 2015.