Παραπομπή σε μορφή APA (7η εκδ.)

Helm, G. (1981). Adrenergic and peptidergic neuromuscular mechanisms in the human Fallopian tube: With special regard to cyclic influences. [s.n.].

Παραπομπή σε μορφή Chicago (17η εκδ.)

Helm, Göran. Adrenergic and Peptidergic Neuromuscular Mechanisms in the Human Fallopian Tube: With Special Regard to Cyclic Influences. Lund: [s.n.], 1981.

Παραπομπή σε μορφή MLA (8th εκδ.)

Helm, Göran. Adrenergic and Peptidergic Neuromuscular Mechanisms in the Human Fallopian Tube: With Special Regard to Cyclic Influences. [s.n.], 1981.