APA (7th ed.) Citation

Spencers, Lithosphere, & Campaign, N. S. (1989). af015257: Nicaragua ten years of freedom.

Chicago Style (17th ed.) Citation

Spencers, Lithosphere, and Nicaragua Solidarity Campaign. Af015257: Nicaragua Ten Years of Freedom. 1989.

MLA (8th ed.) Citation

Spencers, et al. Af015257: Nicaragua Ten Years of Freedom. 1989.