APA (7e ed.) Bronvermelding
Robb, J. D. (1994). Focus!: The power of people group thinking : a practical manual for planning effective strategies to reach the unreached (New expanded ed.). MARC.
Chicago (17e ed.) Bronvermelding
Robb, John D. Focus!: The Power of People Group Thinking : A Practical Manual for Planning Effective Strategies to Reach the Unreached. New expanded ed. Monrovia, Calif.: MARC, 1994.
MLA (9e ed.) Bronvermelding
Robb, John D. Focus!: The Power of People Group Thinking : A Practical Manual for Planning Effective Strategies to Reach the Unreached. New expanded ed. MARC, 1994.
Let op: Deze citaties zijn niet altijd 100% accuraat.