Regan, M., & Howard, R. (1995). Fear conditioning, preparedness, and the contingent negative variation. Psychophysiology, 32(3), 208. https://doi.org/10.1111/j.1469-8986.1995.tb02950.x
Chicago Style (17th ed.) CitationRegan, Martin, and Rick Howard. "Fear Conditioning, Preparedness, and the Contingent Negative Variation." Psychophysiology 32, no. 3 (1995): 208. https://doi.org/10.1111/j.1469-8986.1995.tb02950.x.
MLA (9th ed.) CitationRegan, Martin, and Rick Howard. "Fear Conditioning, Preparedness, and the Contingent Negative Variation." Psychophysiology, vol. 32, no. 3, 1995, p. 208, https://doi.org/10.1111/j.1469-8986.1995.tb02950.x.
Warning: These citations may not always be 100% accurate.