Schwab, J. J. (1967). Biology teachers' handbook (7th ptg.). John Wiley and Sons, Inc..
Citación estilo ChicagoSchwab, Joseph J. Biology Teachers' Handbook. 7th ptg. New York: John Wiley and Sons, Inc., 1967.
Cita MLASchwab, Joseph J. Biology Teachers' Handbook. 7th ptg. John Wiley and Sons, Inc., 1967.
Warning: These citations may not always be 100% accurate.