(1963). The world book encyclopedia. Vol.19 (W-X-Y-Z). Chicago: Field Enterprises Educational Corporation.
Chicago-stil citatThe World Book Encyclopedia. Vol.19 (W-X-Y-Z). Chicago: Field Enterprises Educational Corporation, 1963.
MLA-referensThe World Book Encyclopedia. Vol.19 (W-X-Y-Z). Chicago: Field Enterprises Educational Corporation, 1963.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.