Gaya APA

Nagle, H, T., Phillips, C, L. (1990). Digital control system analysis and design / Charles L. Phillips, and H. Troy Nagle (2nd.ed.). Englewood Cliffs: Prentice-Hall, Inc..

Gaya MLA

Nagle, H., Troy., Phillips, Charles, L.. "Digital control system analysis and design / Charles L. Phillips, and H. Troy Nagle". 2nd.ed. Englewood Cliffs: Prentice-Hall, Inc., 1990. Textbook.