Citazione APA

Hajela, T. (1975). Principles, problems and practice of co operation. Shiva lal agrwala and company.

Stile di citazione Chicago

Hajela, T.N. Principles, Problems and Practice of Co Operation. Agra: Shiva lal agrwala and company, 1975.

Citazione MLA

Hajela, T.N. Principles, Problems and Practice of Co Operation. Shiva lal agrwala and company, 1975.

Attenzione: Queste citazioni potrebbero non essere precise al 100%.