APA

Berra T. M., . (1981). An atlas of distribution of the freshwater fish families of the world. London: University of Nebraska.

Chicago

Berra Tim M, . 1981. An atlas of distribution of the freshwater fish families of the world. London: University of Nebraska.

Harvard

Berra T. M., . (1981). An atlas of distribution of the freshwater fish families of the world. London: University of Nebraska.

MLA

Berra Tim M, . An atlas of distribution of the freshwater fish families of the world. London: University of Nebraska. 1981.