APA

Walker L., .The food spectrum of the cardinal-tetra - Paracheirodon axelrodi, Characidae - in its natural habitat. : .

Chicago

Walker Lise, .The food spectrum of the cardinal-tetra - Paracheirodon axelrodi, Characidae - in its natural habitat. : .

Harvard

Walker L., .The food spectrum of the cardinal-tetra - Paracheirodon axelrodi, Characidae - in its natural habitat. : .

MLA

Walker Lise, .: . .