Παραπομπή APA

Hajela, T. N. Principles, Problems and Practice of Co-Operation. Shiva Lal Agarwala.

Παραπομπή Chicago Style

Hajela, T. N. Principles, Problems and Practice of Co-Operation. Agra: Shiva Lal Agarwala.

Παραπομπή MLA

Hajela, T. N. Principles, Problems and Practice of Co-Operation. Shiva Lal Agarwala.

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