Huerta, E., Valier, O., Romero, D., & Jarquin, A. (2010). Effect off three earthworm species on soil fertility and the growth of maize (Zea mays) seedlings. Instituto de Ecología, A.C.
Lua i Stíl Chicago (17ú heag.)Huerta, Esperanza, Olivia Valier, Day Romero, agus Aaron Jarquin. Effect off Three Earthworm Species on Soil Fertility and the Growth of Maize (Zea Mays) Seedlings. Instituto de Ecología, A.C, 2010.
Lua MLA (9ú heag.)Huerta, Esperanza, et al. Effect off Three Earthworm Species on Soil Fertility and the Growth of Maize (Zea Mays) Seedlings. Instituto de Ecología, A.C, 2010.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.
