Gaya APA

Wijngaards, J, M. (1963). What we can learn from secular efficiency, thoughts for those engaged in the apostolate. . [New Delhi]: StPaul Publications.

Gaya MLA

Wijngaards, J.N.M.,, MHM.. "What we can learn from secular efficiency, thoughts for those engaged in the apostolate. ". [New Delhi]: StPaul Publications, 1963. Buku.