APA

American Petroleum Institute A., Clayton environmental consultants & Clayton environmental consultants. (1991). Gasoline vapor exposure assessment at service stations. Washington: American Petroleum Institute, API.

Chicago

American Petroleum Institute API, Clayton environmental consultants and Clayton environmental consultants. 1991. Gasoline vapor exposure assessment at service stations. Washington: American Petroleum Institute, API.

Harvard

American Petroleum Institute A., Clayton environmental consultants and Clayton environmental consultants. (1991). Gasoline vapor exposure assessment at service stations. Washington: American Petroleum Institute, API.

MLA

American Petroleum Institute API, Clayton environmental consultants and Clayton environmental consultants. Gasoline vapor exposure assessment at service stations. Washington: American Petroleum Institute, API. 1991.