APA (7th ed.) Citation

Hyman, G. M., & Gleave, D. A reasonable theory of migration.

Chicago Style (17th ed.) Citation

Hyman, Geoffrey M., and David Gleave. A Reasonable Theory of Migration. London.

MLA (9th ed.) Citation

Hyman, Geoffrey M., and David Gleave. A Reasonable Theory of Migration.

Warning: These citations may not always be 100% accurate.