Singer, E. (1954). Personality in handwriting: The guiding image in graphology. Duckworth.
Chicago Style citaatSinger, Eric. Personality in Handwriting: The Guiding Image in Graphology. London: Duckworth, 1954.
MLA citatieSinger, Eric. Personality in Handwriting: The Guiding Image in Graphology. Duckworth, 1954.
Let op: Deze citaties zijn niet altijd 100% accuraat.