Asperen, G. H. v. (1969). Psychotherapie: Concentrische methode. Mens en medemens.
Chicago Style (17th ed.) CitationAsperen, G. H. van. "Psychotherapie: Concentrische Methode." Mens En Medemens 1969.
MLA (9th ed.) CitationAsperen, G. H. van. "Psychotherapie: Concentrische Methode." Mens En Medemens, 1969.
Warning: These citations may not always be 100% accurate.