Howell, D. J., & Burch, D. (1973). Food habits of some Costa Rican bats.
Citación estilo ChicagoHowell, D. J., y Derek Burch. Food Habits of Some Costa Rican Bats. 1973.
MLA引文Howell, D. J., y Derek Burch. Food Habits of Some Costa Rican Bats. 1973.
警告：這些引文格式不一定是100％准確.