APA

American Petroleum Institute A., . (1984). New approaches to quantification of perception of scenic beauty and visibility. Washington: American Petroleum Institute, API.

Chicago

American Petroleum Institute API, . 1984. New approaches to quantification of perception of scenic beauty and visibility. Washington: American Petroleum Institute, API.

Harvard

American Petroleum Institute A., . (1984). New approaches to quantification of perception of scenic beauty and visibility. Washington: American Petroleum Institute, API.

MLA

American Petroleum Institute API, . New approaches to quantification of perception of scenic beauty and visibility. Washington: American Petroleum Institute, API. 1984.