APA (7th ed.) Citation

Bailey, R. W., & Schmidt, B. T. (2017). Little green men-- attack! Baen Publishing Enterprises.

Chicago Style (17th ed.) Citation

Bailey, Robin W., and Bryan Thomas Schmidt. Little Green Men-- Attack! Riverdale, NY: Baen Publishing Enterprises, 2017.

MLA (8th ed.) Citation

Bailey, Robin W., and Bryan Thomas Schmidt. Little Green Men-- Attack! Baen Publishing Enterprises, 2017.