(1987). V5: Proceedings of the Fifth National Symposium on Individual and Small Community Sewage Systems. Illinois United Educators.
استشهاد بنمط شيكاغوV5: Proceedings of the Fifth National Symposium on Individual and Small Community Sewage Systems. Chicago: Illinois United Educators, 1987.
MLA استشهادV5: Proceedings of the Fifth National Symposium on Individual and Small Community Sewage Systems. Illinois United Educators, 1987.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.