Cita APA (7th ed.)

Bates, M., & Dudley-Evans, T. (1982). General science (New ed. with reading texts.). Longman.

Cita Chicago (17th ed.)

Bates, Martin, i Tony Dudley-Evans. General Science. New ed. with reading texts. Harlow, England: Longman, 1982.

Cita MLA (8th ed.)

Bates, Martin, i Tony Dudley-Evans. General Science. New ed. with reading texts. Longman, 1982.