Παραπομπή APA

Twitchel K. S. (1953). Saudi Arabia with an account of the development of its natural resources (2nd ed.).

Παραπομπή Chicago Style

Twitchel K. S. Saudi Arabia with an Account of the Development of Its Natural Resources. 2nd ed. 1953.

Παραπομπή MLA

Twitchel K. S. Saudi Arabia with an Account of the Development of Its Natural Resources. 2nd ed. 1953.

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