APA (7th ed.) Citation

Hermans, H. J. M., & Bonarius, H. (1991). The person as co-investigator in personality research. European journal of personality, 5(3), 199-216.

Chicago Style (17th ed.) Citation

Hermans, Hubert J. M., and Han Bonarius. "The Person as Co-investigator in Personality Research." European Journal of Personality 5, no. 3 (1991): 199-216.

MLA (8th ed.) Citation

Hermans, Hubert J. M., and Han Bonarius. "The Person as Co-investigator in Personality Research." European Journal of Personality, vol. 5, no. 3, 1991, pp. 199-216.