Gaya APA

DAMMGEN, U. et al (2011). Reassessment of the calculation procedure for the volatile solids excretion rates of cattle and pigs . Hamburg-Germany: vTI.

Gaya MLA

DAMMGEN, Ulrich. et al. "Reassessment of the calculation procedure for the volatile solids excretion rates of cattle and pigs". Hamburg-Germany: vTI, 2011. Artikel.