SERNA, M. A. E., FERRARI, A. R. L., CORREA, N. M., & ESPARZA, V. A. P. (2007). BROMELIAD FLORA OF OAXACA, MEXICO: RICHNESS AND DISTRIBUTION.
Čikaški stil citiranja (17. izdanje)SERNA, MARIO ADOLFO ESPEJO, ANA ROSA LÓPEZ FERRARI, NANCY MARTINEZ CORREA, i VALERIA ANGELICA PULIDO ESPARZA. BROMELIAD FLORA OF OAXACA, MEXICO: RICHNESS AND DISTRIBUTION. 2007.
MLA način citiranja (9. izdanje)SERNA, MARIO ADOLFO ESPEJO, et al. BROMELIAD FLORA OF OAXACA, MEXICO: RICHNESS AND DISTRIBUTION. 2007.