Παραπομπή σε μορφή APA (7η εκδ.)
Du Plessis, J. (2012). The definitive guide to point and figure: A comprehensive guide to the theory and practical use of the point and figure charting method (2nd ed.). Harriman House.
Παραπομπή σε μορφή Chicago (17η εκδ.)
Du Plessis, Jeremy. The Definitive Guide to Point and Figure: A Comprehensive Guide to the Theory and Practical Use of the Point and Figure Charting Method. 2nd ed. Petersfield, Hampshire: Harriman House, 2012.
Παραπομπή σε μορφή MLA (9th εκδ.)
Du Plessis, Jeremy. The Definitive Guide to Point and Figure: A Comprehensive Guide to the Theory and Practical Use of the Point and Figure Charting Method. 2nd ed. Harriman House, 2012.
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