Cita APA (7th ed.)

Hubert, P. G. (2001). Men of achievement: Inventors. Digital Scanning.

Cita Chicago (17th ed.)

Hubert, Philip Gengembre. Men of Achievement: Inventors. Scituate, Mass.: Digital Scanning, 2001.

Cita MLA (9th ed.)

Hubert, Philip Gengembre. Men of Achievement: Inventors. Digital Scanning, 2001.