Gaya APA

HAENEL, H. et al (2011). Estimating numbers of piglets, weaners and fattining pigs for the german agricultural emission inven . Hamburg-Germany: vTI.

Gaya MLA

HAENEL, HAns-Dieter. et al. "Estimating numbers of piglets, weaners and fattining pigs for the german agricultural emission inven". Hamburg-Germany: vTI, 2011. Artikel.