Cita APA

Fowler, J., & Cohen, L. (1990). Statistics for ornithologists (2a. ed.). [S. l.]: British Trush for Ornithology.

Citación estilo Chicago

Fowler, Jim, y Louis Cohen. Statistics for Ornithologists. 2a. ed. [S. l.]: British Trush for Ornithology, 1990.

Cita MLA

Fowler, Jim, y Louis Cohen. Statistics for Ornithologists. 2a. ed. [S. l.]: British Trush for Ornithology, 1990.