APA (7th ed.) Citation

Heldman, D. P., & Minnerly, W. L. (1977). The powder magazine at Fort Michilimackinac: Excavation report. Mackinac Island State Park Commission.

Chicago Style (17th ed.) Citation

Heldman, Donald P., and William L. Minnerly. The Powder Magazine at Fort Michilimackinac: Excavation Report. [Lansing, Mich.]: Mackinac Island State Park Commission, 1977.

MLA (9th ed.) Citation

Heldman, Donald P., and William L. Minnerly. The Powder Magazine at Fort Michilimackinac: Excavation Report. Mackinac Island State Park Commission, 1977.