Cita APA (7th ed.)
Trobisch, W. (1970). My parents are impossible. Inter-Varsity Press.
Cita Chicago (17th ed.)
Trobisch, Walter. My Parents Are Impossible. Illinois: Inter-Varsity Press, 1970.
Cita MLA (9th ed.)
Trobisch, Walter. My Parents Are Impossible. Inter-Varsity Press, 1970.
Atenció: Aquestes cites poden no estar 100% correctes.