...[et.al.], P. A. (1997). Mat789. FCG.
Chicago Style (17th ed.) Citation...[et.al.], Paulo Abrantes. Mat789. FCG, 1997.
MLA (8th ed.) Citation...[et.al.], Paulo Abrantes. Mat789. FCG, 1997.
Warning: These citations may not always be 100% accurate.