Hardel, L. (1981). Mariechens Apfelbaum. Junge Welt.
Cita Chicago (17th ed.)Hardel, Lilo. Mariechens Apfelbaum. Berlin: Junge Welt, 1981.
Cita MLA (8th ed.)Hardel, Lilo. Mariechens Apfelbaum. Junge Welt, 1981.
Atenció: Aquestes cites poden no estar 100% correctes.