Davenport, P. (2004). Rex barks: Diagramming sentences made easy. The Paper Tiger.
Citazione stile Chigago Style (17a edizione)Davenport, Phyllis. Rex Barks: Diagramming Sentences Made Easy. Nueva York: The Paper Tiger, 2004.
Citatione MLA (9a ed.)Davenport, Phyllis. Rex Barks: Diagramming Sentences Made Easy. The Paper Tiger, 2004.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.