Beard, R. Laboratory studies on house fly population. I. A continous reading system. II. Characteristics of closed populations. New Haven: 1958 12 p. : ill.
Beard, R. Laboratory studies on house fly population. I. A continous reading system. II. Characteristics of closed populations. New Haven: 1958 12 p. : ill.
Beard, R. (1958) Laboratory studies on house fly population. I. A continous reading system. II. Characteristics of closed populations, New Haven: 12 p. : ill.
Beard, R. (1958). Laboratory studies on house fly population. I. A continous reading system. II. Characteristics of closed populations. New Haven: 12 p. : ill.
Beard R. Laboratory studies on house fly population. I. A continous reading system. II. Characteristics of closed populations. New Haven: 1958. p. 12 p. : ill.