APA
Penson J. B., Pope R. D. j. a. & Cook M. L. j. a. (1986). Introduction to agricultural economics. New Jersey: Prentice-Hall.
Chicago
Penson John B, Pope Rulon D joint author and Cook Michael L joint author. 1986. Introduction to agricultural economics. New Jersey: Prentice-Hall.
Harvard
Penson J. B., Pope R. D. j. a. and Cook M. L. j. a. (1986). Introduction to agricultural economics. New Jersey: Prentice-Hall.
MLA
Penson John B, Pope Rulon D joint author and Cook Michael L joint author. Introduction to agricultural economics. New Jersey: Prentice-Hall. 1986.