Cita APA (7a ed.)

Summers, K. (2020). Exploring cities and countries of the world. Nova Science Publishers.

Cita Chicago Style (17a ed.)

Summers, Kathie. Exploring Cities and Countries of the World. New York: Nova Science Publishers, 2020.

Cita MLA (8a ed.)

Summers, Kathie. Exploring Cities and Countries of the World. Nova Science Publishers, 2020.