APA引文

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

Chicago Style (17th ed.) Citation

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

MLA引文

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

警告：這些引文格式不一定是100％准確.