Gregorio Salvador. (2004). 6+7=18. FahrenHouse.
Chicago Style (17th ed.) CitationGregorio Salvador. 6+7=18. FahrenHouse, 2004.
MLA (9th ed.) CitationGregorio Salvador. 6+7=18. FahrenHouse, 2004.
Warning: These citations may not always be 100% accurate.