1.
, , . Briefwechsel 1908-1960. Basel: Schwabe; 1997.
, et . Briefwechsel 1908-1960. Basel : Schwabe, 3 juin 1997. ISBN 3-7965-1030-2
Häberlin Paul, Binswanger Ludwig, & Luczak Jeannine. (1997). Briefwechsel 1908-1960. Schwabe.
MLA (8th ed.) CitationHäberlin Paul, et al. Briefwechsel 1908-1960. Schwabe, 1997.
Warning: These citations may not always be 100% accurate.