APA (7th ed.) Citation

Nigeria. Land and Survey Dept & United States. Army Map Service. (1960). West Africa 1: 250,000 (Ed. 1-GSGS.). Printed by Army Map Service, Corps of Engineers.

Chicago Style (17th ed.) Citation

Nigeria. Land and Survey Dept and United States. Army Map Service. West Africa 1: 250,000. Ed. 1-GSGS. [Washington]: Printed by Army Map Service, Corps of Engineers, 1960.

MLA (8th ed.) Citation

Nigeria. Land and Survey Dept and United States. Army Map Service. West Africa 1: 250,000. Ed. 1-GSGS. Printed by Army Map Service, Corps of Engineers, 1960.