Cita APA (7a ed.)
Gould, J., L., & Grant Gould, C. Life at the Edge: Readings from Scientific American Magazine. W.H. Freeman and Company.
Cita estilo Chicago (17a ed.)
Gould, James, L., y Carol Grant Gould. Life at the Edge: Readings from Scientific American Magazine. Nueva York, EUA: W.H. Freeman and Company.
Cita MLA (9a ed.)
Gould, James, L., y Carol Grant Gould. Life at the Edge: Readings from Scientific American Magazine. W.H. Freeman and Company.
Precaución: Estas citas no son 100% exactas.