APA

American Petroleum Institute A., . (1987). Surface roughness effects on heavier - than - air gas diffusion. Washington: American Petroleum Institute, API.

Chicago

American Petroleum Institute API, . 1987. Surface roughness effects on heavier - than - air gas diffusion. Washington: American Petroleum Institute, API.

Harvard

American Petroleum Institute A., . (1987). Surface roughness effects on heavier - than - air gas diffusion. Washington: American Petroleum Institute, API.

MLA

American Petroleum Institute API, . Surface roughness effects on heavier - than - air gas diffusion. Washington: American Petroleum Institute, API. 1987.