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

MLA

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

APA

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

Chicago

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