APA (7th ed.) Citation

Keupp, M. M. (2021). Defense economics: An introduction. Springer.

Chicago Style (17th ed.) Citation

Keupp, Marcus Matthias. Defense Economics: An Introduction. Cham: Springer, 2021.

MLA (9th ed.) Citation

Keupp, Marcus Matthias. Defense Economics: An Introduction. Springer, 2021.