APA-čujuhus (7. p.)
Schlagel, R. H. (2011). Forging the methodology that enlightened modern civilization. Peter Lang.
Chicago-čujuhus (17. p.)
Schlagel, Richard H. Forging the Methodology That Enlightened Modern Civilization. New York: Peter Lang, 2011.
MLA-čujuhus (9. p.)
Schlagel, Richard H. Forging the Methodology That Enlightened Modern Civilization. Peter Lang, 2011.
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