APA-viite (7. p.)
Ehlers, J. F. (2013). Cycle analytics for traders: Advanced technical trading concepts. John Wiley and Sons, Inc..
Chicago-viite (17. p.)
Ehlers, John F. Cycle Analytics for Traders: Advanced Technical Trading Concepts. Hoboken, New Jersey: John Wiley and Sons, Inc., 2013.
MLA-viite (9. p.)
Ehlers, John F. Cycle Analytics for Traders: Advanced Technical Trading Concepts. John Wiley and Sons, Inc., 2013.
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