Cita APA (7a ed.)

Ludwig, E. E. (1988). Applied project engineering and management (2nd ed.). Gulf Publishing.

Cita Chicago Style (17a ed.)

Ludwig, Ernest E. Applied Project Engineering and Management. 2nd ed. Houston: Gulf Publishing, 1988.

Cita MLA (8a ed.)

Ludwig, Ernest E. Applied Project Engineering and Management. 2nd ed. Gulf Publishing, 1988.