Cita APA (7th ed.)

Barrett, W. W., Johnson, C. R., & Loewy, R. (1996). The real positive definite completation problem: Cycle completability. American Mathematical Society.

Cita Chicago (17th ed.)

Barrett, Wayne W., Charlles R. Johnson, i Raphael Loewy. The Real Positive Definite Completation Problem: Cycle Completability. Providence: American Mathematical Society, 1996.

Cita MLA (9th ed.)

Barrett, Wayne W., et al. The Real Positive Definite Completation Problem: Cycle Completability. American Mathematical Society, 1996.