Cita APA (7a ed.)

Calvert, W. H., Hyatt, M. B., & Mendoza Villaseñor, N. P. (1986). The effects of understory vegetation on the survival of overwintering Monarch butterflies, (Danaus plexippus L.) in Mexico. Instituto de Ecología, A.C.

Cita Chicago Style (17a ed.)

Calvert, William H., Martin B. Hyatt, y Norma P. Mendoza Villaseñor. The Effects of Understory Vegetation on the Survival of Overwintering Monarch Butterflies, (Danaus Plexippus L.) in Mexico. Instituto de Ecología, A.C, 1986.

Cita MLA (9a ed.)

Calvert, William H., et al. The Effects of Understory Vegetation on the Survival of Overwintering Monarch Butterflies, (Danaus Plexippus L.) in Mexico. Instituto de Ecología, A.C, 1986.