APA

Merrill R. W., Cummins K. W. & Berg M. B. (2019). An introduction to the aquatic insects of North America. Dubuque, IA: Kendall Hunt.

Chicago

Merrill Richard W, Cummins Kenneth W and Berg M B. 2019. An introduction to the aquatic insects of North America. Dubuque, IA: Kendall Hunt.

Harvard

Merrill R. W., Cummins K. W. and Berg M. B. (2019). An introduction to the aquatic insects of North America. Dubuque, IA: Kendall Hunt.

MLA

Merrill Richard W, Cummins Kenneth W and Berg M B. An introduction to the aquatic insects of North America. Dubuque, IA: Kendall Hunt. 2019.