APA
International Banking Summer School (Noordwijk) (1960), International Banking Summer School (Noordwijk) (1960), . (1961). Trends in bank credit and finance. : .
Chicago
International Banking Summer School (Noordwijk) (1960), International Banking Summer School (Noordwijk) (1960), . 1961. Trends in bank credit and finance. : .
Harvard
International Banking Summer School (Noordwijk) (1960), International Banking Summer School (Noordwijk) (1960), . (1961). Trends in bank credit and finance. : .
MLA
International Banking Summer School (Noordwijk) (1960), International Banking Summer School (Noordwijk) (1960), . Trends in bank credit and finance. : . 1961.