Trench silo
MLA
Not Available. "Trench silo." Hargrett Library. 1900/1969, https://dlg.usg.edu/record/guan_caes_0004-001-009-310-010#item.
APA
Not Available (1900/1969). Trench silo. Retrieved from https://dlg.usg.edu/record/guan_caes_0004-001-009-310-010#item
Chicago
Not Available. "Trench silo." 1900/1969. August 4, 2025. https://dlg.usg.edu/record/guan_caes_0004-001-009-310-010#item.
