Grieger, P. (1967). Practica de caracterologia (3a ed. notablemente ampliada.). Marfil.
Chicago Style (17th ed.) CitationGrieger, Paul. Practica De Caracterologia. 3a ed. notablemente ampliada. Alcoy: Marfil, 1967.
MLA (9th ed.) CitationGrieger, Paul. Practica De Caracterologia. 3a ed. notablemente ampliada. Marfil, 1967.
Warning: These citations may not always be 100% accurate.