Bowman, C. (2016). Ruby-throated hummingbirds. Bellwether Media.
Cita Chicago Style (17a ed.)Bowman, Chris. Ruby-throated Hummingbirds. Minneapolis, MN: Bellwether Media, 2016.
Cita MLA (8a ed.)Bowman, Chris. Ruby-throated Hummingbirds. Bellwether Media, 2016.
Precaución: Estas citas no son 100% exactas.