APA (7th ed.) Citation

Igou, D. L. (1982). Interpretive subsurface contouring. Published by Interpretive Subsurface Contouring.

Chicago Style (17th ed.) Citation

Igou, D. L. Interpretive Subsurface Contouring. [Midlands, Tex.]: Published by Interpretive Subsurface Contouring, 1982.

MLA (9th ed.) Citation

Igou, D. L. Interpretive Subsurface Contouring. Published by Interpretive Subsurface Contouring, 1982.

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