Twenty-eight congress Hamburg (FRG), 15th October - 18th October 1984 : : congress summary.

MLA

Twenty-eight Congress Hamburg (frg), 15th October - 18th October 1984 : Congress Summary. Geneva: ICA, 1984.

APA

(1984). Twenty-eight congress Hamburg (FRG), 15th October - 18th October 1984 : congress summary. Geneva: ICA.

Chicago

Twenty-Eight Congress Hamburg (FRG), 15th October - 18th October 1984: Congress Summary. Geneva: ICA, 1984.