APA (7th ed.) Citation

Papantoniou, A. (2016). Heart rate variability as a physiological indicator or mental toughness.

Chicago Style (17th ed.) Citation

Papantoniou, Adamos. Heart Rate Variability as a Physiological Indicator or Mental Toughness. 2016.

MLA (9th ed.) Citation

Papantoniou, Adamos. Heart Rate Variability as a Physiological Indicator or Mental Toughness. 2016.

Warning: These citations may not always be 100% accurate.