APA (7th ed.) Citation

(1980). Techniques of program and system Maintenance. Libry of congress.

Chicago Style (17th ed.) Citation

Techniques of Program and System Maintenance. America: Libry of congress, 1980.

MLA (9th ed.) Citation

Techniques of Program and System Maintenance. Libry of congress, 1980.

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