APA (7e ed.) Bronvermelding
Johnson, D. W., & Johnson, F. P. (1975). Joining together: Group theory and group skills. Prentice-Hall.
Chicago (17e ed.) Bronvermelding
Johnson, David W., en Frank P. Johnson. Joining Together: Group Theory and Group Skills. Englewood Cliffs, N.J.: Prentice-Hall, 1975.
MLA (9e ed.) Bronvermelding
Johnson, David W., en Frank P. Johnson. Joining Together: Group Theory and Group Skills. Prentice-Hall, 1975.
Let op: Deze citaties zijn niet altijd 100% accuraat.