Citace podle APA (7th ed.)

Ople, B. F. Proposals for further development: Manpower planning ; vocational and career guidance. s.n.].

Citace podle Chicago (17th ed.)

Ople, Blas F. Proposals for Further Development: Manpower Planning ; Vocational and Career Guidance. [S.l: s.n.].

Citace podle MLA (9th ed.)

Ople, Blas F. Proposals for Further Development: Manpower Planning ; Vocational and Career Guidance. s.n.].

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