Francis, L. J., Crea, G., & McKenna, U. (2019). The Purpose-in-Life Scale (PILS): Internal consistency reliability, concurrent validity and construct validity among Catholic priests in Italy. Mental health, religion & culture, 22(6), 602-613. doi:10.1080/13674676.2018.1538205
Cita Chicago Style (17a ed.)Francis, Leslie J., Giuseppe Crea, y Ursula McKenna. "The Purpose-in-Life Scale (PILS): Internal Consistency Reliability, Concurrent Validity and Construct Validity Among Catholic Priests in Italy." Mental Health, Religion & Culture 22, no. 6 (2019): 602-613, https://doi.org/10.1080/13674676.2018.1538205.
Cita MLA (8a ed.)Francis, Leslie J., et al. "The Purpose-in-Life Scale (PILS): Internal Consistency Reliability, Concurrent Validity and Construct Validity Among Catholic Priests in Italy." Mental Health, Religion & Culture, vol. 22, no. 6, 2019, pp. 602-613, https://doi.org/10.1080/13674676.2018.1538205.