Cita APA (7a ed.)

Bridget Travers. (1994). World of scientific discovery. Gale Research.

Cita Chicago Style (17a ed.)

Bridget Travers. World of Scientific Discovery. Detroit: Gale Research, 1994.

Cita MLA (9a ed.)

Bridget Travers. World of Scientific Discovery. Gale Research, 1994.