Cita APA (7th ed.)

Beijnum, I. v. (2002). BGP. O'Reilly & Associates, Inc.

Cita Chicago (17th ed.)

Beijnum, Iljitsch van. BGP. Sebastopol, California: O'Reilly & Associates, Inc, 2002.

Cita MLA (9th ed.)

Beijnum, Iljitsch van. BGP. O'Reilly & Associates, Inc, 2002.