APA (7th ed.) Citation

Guerra, C. H. M. C. (2012). Gateway SIP - Asterisk.

Chicago Style (17th ed.) Citation

Guerra, Carlos Humberto Martins Chagas. Gateway SIP - Asterisk. 2012.

MLA (8th ed.) Citation

Guerra, Carlos Humberto Martins Chagas. Gateway SIP - Asterisk. 2012.

Warning: These citations may not always be 100% accurate.