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.
Chicago-čujuhus (17. p.)Alvarez Aguirre, Maria Guadalupe, juo Carlos Montaña. Germination and Survival of Five Cactace Species from The Tehuacan Valley: Implications for Their Conservation. Instituto de Ecología, A.C, 1997.
MLA-čujuhus (9. p.)Alvarez Aguirre, Maria Guadalupe, juo Carlos Montaña. Germination and Survival of Five Cactace Species from The Tehuacan Valley: Implications for Their Conservation. Instituto de Ecología, A.C, 1997.
Muitte dárkkistit čujuhemiid riektatvuođa, ovdal go geavahat daid iežat deavsttas.
