APA
AMAVIS R., SMEETS J., . (1976). Principles and methods for determining ecological criteria on hydrobiocenoses. Oxford: Pergamon.
Chicago
AMAVIS R, SMEETS J, . 1976. Principles and methods for determining ecological criteria on hydrobiocenoses. Oxford: Pergamon.
Harvard
AMAVIS R., SMEETS J., . (1976). Principles and methods for determining ecological criteria on hydrobiocenoses. Oxford: Pergamon.
MLA
AMAVIS R, SMEETS J, . Principles and methods for determining ecological criteria on hydrobiocenoses. Oxford: Pergamon. 1976.