Alvarez Aguirre, M. G., & Montaña, C. (1997). Germination and survival of five Cactace species from The Tehuacan Valley: Implications for their conservation. Instituto de Ecología, A.C.
Style de citation Chicago (17e éd.)Alvarez Aguirre, Maria Guadalupe, et Carlos Montaña. Germination and Survival of Five Cactace Species from The Tehuacan Valley: Implications for Their Conservation. Instituto de Ecología, A.C, 1997.
Style de citation MLA (9e éd.)Alvarez Aguirre, Maria Guadalupe, et Carlos Montaña. Germination and Survival of Five Cactace Species from The Tehuacan Valley: Implications for Their Conservation. Instituto de Ecología, A.C, 1997.