APA (7th ed.) Citation

Ritterskamp, J. J. (1987). Purchasing manager's desk book of purchasing law. Prentice-Hall.

Chicago Style (17th ed.) Citation

Ritterskamp, James J. Purchasing Manager's Desk Book of Purchasing Law. Englewood Cliffs, NJ: Prentice-Hall, 1987.

MLA (9th ed.) Citation

Ritterskamp, James J. Purchasing Manager's Desk Book of Purchasing Law. Prentice-Hall, 1987.

Warning: These citations may not always be 100% accurate.