Merrit y Cummins (1979)
Merritt, R.W. y K.W. Cummins (editores). 1979. An introduction to aquatic insects of North America. Kendall/Hunt Publishing Company. 441 pp. Iowa, USA.
Merritt, R.W. y K.W. Cummins (editores). 1979. An introduction to aquatic insects of North America. Kendall/Hunt Publishing Company. 441 pp. Iowa, USA.