VVB Spielwaren <Sonneberg> & Außenhandelsunternehmen DEMUSA GmbH <Berlin>. (1967). Leipzig Spring Fair 1967: Technical Fair and Consumer Goods Fair from 5th Till 14th March ; Fair Catalogue. Volksdruckerei.
Citazione stile Chigago Style (17a edizione)VVB Spielwaren <Sonneberg> e Außenhandelsunternehmen DEMUSA GmbH <Berlin>. Leipzig Spring Fair 1967: Technical Fair and Consumer Goods Fair from 5th Till 14th March ; Fair Catalogue. Sonneberg: Volksdruckerei, 1967.
Citatione MLA (8a ed.)VVB Spielwaren <Sonneberg> e Außenhandelsunternehmen DEMUSA GmbH <Berlin>. Leipzig Spring Fair 1967: Technical Fair and Consumer Goods Fair from 5th Till 14th March ; Fair Catalogue. Volksdruckerei, 1967.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.