APA-čujuhus (7. p.)
Progoff, I. The Symbolic and the Real: A New Psychological Approach to the Fuller Experience of Personal Existence. McGraw-Hill.
Chicago-čujuhus (17. p.)
Progoff, Ira. The Symbolic and the Real: A New Psychological Approach to the Fuller Experience of Personal Existence. Nueva York, EUA: McGraw-Hill.
MLA-čujuhus (9. p.)
Progoff, Ira. The Symbolic and the Real: A New Psychological Approach to the Fuller Experience of Personal Existence. McGraw-Hill.
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