Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.
APA Citation Edition CitationMetcalf, D. M. (2008). Twenty-one Years of Progress: Twenty-one Years of Progress.
Chicago Citation Edition CitationMetcalf, D. M. Twenty-one Years of Progress: Twenty-one Years of Progress. Woodbridge, 2008.
MLA Citation Edition CitationMetcalf, D. M. Twenty-one Years of Progress: Twenty-one Years of Progress. 2008.
