Cita APA (7th ed.)

Bruno, L. C., & Olendorf, D. (1997). Science & technology firsts. Gale Research.

Cita Chicago (17th ed.)

Bruno, Leonard C., i Donna Olendorf. Science & Technology Firsts. Detroit: Gale Research, 1997.

Cita MLA (9th ed.)

Bruno, Leonard C., i Donna Olendorf. Science & Technology Firsts. Gale Research, 1997.