APA (7e ed.) Bronvermelding

Peterson, E. H. (1992). Under the unpredictable plant: An exploration in vocational holiness. William B. Eerdmans.

Chicago (17e ed.) Bronvermelding

Peterson, Eugene H. Under the Unpredictable Plant: An Exploration in Vocational Holiness. Grand Rapids: William B. Eerdmans, 1992.

MLA (9e ed.) Bronvermelding

Peterson, Eugene H. Under the Unpredictable Plant: An Exploration in Vocational Holiness. William B. Eerdmans, 1992.