Bertsch, H. (1966). Developing effective rural credit institutions. s.n.
Chicago Style aipamenaBertsch, Howard. Developing Effective Rural Credit Institutions. [College, Laguna: s.n, 1966.
MLA aipamenaBertsch, Howard. Developing Effective Rural Credit Institutions. s.n, 1966.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.