APA

Zarcone T. J., Branch M. N., Hughes C. E. & Pennypacker H. S. (19970407). Key pecking during extinction after intermittent or continuous reinforcement as a function of the number of reinforcers delivered during training. : Journal of the experimental analysis of behavior.

Chicago

Zarcone T J, Branch M N, Hughes C E and Pennypacker H S. 19970407. Key pecking during extinction after intermittent or continuous reinforcement as a function of the number of reinforcers delivered during training. : Journal of the experimental analysis of behavior.

Harvard

Zarcone T. J., Branch M. N., Hughes C. E. and Pennypacker H. S. (19970407). Key pecking during extinction after intermittent or continuous reinforcement as a function of the number of reinforcers delivered during training. : Journal of the experimental analysis of behavior.

MLA

Zarcone T J, Branch M N, Hughes C E and Pennypacker H S. Key pecking during extinction after intermittent or continuous reinforcement as a function of the number of reinforcers delivered during training. : Journal of the experimental analysis of behavior. 19970407.