Παραπομπή σε μορφή APA (7η εκδ.)

Wünsche, J. N. (1993). The bases of productivity in apple (Malus domestica Borkh.) production systems: The role of light interception by different shoot types. [s.n.].

Παραπομπή σε μορφή Chicago (17η εκδ.)

Wünsche, J. N. The Bases of Productivity in Apple (Malus Domestica Borkh.) Production Systems: The Role of Light Interception by Different Shoot Types. Bonn: [s.n.], 1993.

Παραπομπή σε μορφή MLA (8th εκδ.)

Wünsche, J. N. The Bases of Productivity in Apple (Malus Domestica Borkh.) Production Systems: The Role of Light Interception by Different Shoot Types. [s.n.], 1993.