APA (7th ed.) Citation

Texas Engineering Experiment Station. Industrial Economics Research Division. (1969). Reference directory of engineers registered in Texas. [publisher not identified].

Chicago Style (17th ed.) Citation

Texas Engineering Experiment Station. Industrial Economics Research Division. Reference Directory of Engineers Registered in Texas. College Station, Tex.: [publisher not identified], 1969.

MLA (9th ed.) Citation

Texas Engineering Experiment Station. Industrial Economics Research Division. Reference Directory of Engineers Registered in Texas. [publisher not identified], 1969.