Purves, W. K., Heller, C. . H., & Orians, G. H. (1992). Life, the science of biology (3rd ed.). Sunderland ; New York: Sinauer Associates : W.H. Freeman.
Stile di citazione ChicagoPurves, William K., Craig H. Heller, e Gordon H. Orians. Life, the Science of Biology. 3rd ed. Sunderland ; New York: Sinauer Associates : W.H. Freeman, 1992.
Citazione MLAPurves, William K., Craig H. Heller, e Gordon H. Orians. Life, the Science of Biology. 3rd ed. Sunderland ; New York: Sinauer Associates : W.H. Freeman, 1992.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.