APA (7th ed.) Zitazioa

(1933). Centralized purchasing and distribution of school supplies / by Timon Covert.

Chicago Style (17th ed.) Zitazioa

Centralized Purchasing and Distribution of School Supplies / by Timon Covert. 1933.

MLA (9th ed.) Zitazioa

Centralized Purchasing and Distribution of School Supplies / by Timon Covert. 1933.

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