Gaya APA

Kaplan, E, D., Hegarty, C, J. (2006). Understanding GPS: princples and applications (Ed. 2). United States of America: Artech House, Inc..

Gaya MLA

Kaplan, Elliott, D.., Hegarty, Christopher, J.. "Understanding GPS: princples and applications". Ed. 2 United States of America: Artech House, Inc., 2006. Printed Book.