Cita APA (7a ed.)

Shell Group (Londres). (1959). The petroleum handbook (4a. ed.). Shell International Petroleum Company.

Cita Chicago Style (17a ed.)

Shell Group (Londres). The Petroleum Handbook. 4a. ed. Londres: Shell International Petroleum Company, 1959.

Cita MLA (9a ed.)

Shell Group (Londres). The Petroleum Handbook. 4a. ed. Shell International Petroleum Company, 1959.