Northington, D. K., & Schneider, E. L. (1996). The botanical world (2nd ed.). WCB.
Citación estilo ChicagoNorthington, David K., and Edward L. Schneider. The Botanical World. 2nd ed. Dubuque, IA: WCB, 1996.
Cita MLANorthington, David K., and Edward L. Schneider. The Botanical World. 2nd ed. WCB, 1996.
Warning: These citations may not always be 100% accurate.