Παραπομπή σε μορφή APA (7η εκδ.)

Houtgast, J. (1942). The variations in the profiles of strong Fraunhofer lines along a radius of the solar disc .. Drukkerij F. Schotanus & Jens.

Παραπομπή σε μορφή Chicago (17η εκδ.)

Houtgast, Jakob. The Variations in the Profiles of Strong Fraunhofer Lines Along a Radius of the Solar Disc .. Utrecht: Drukkerij F. Schotanus & Jens, 1942.

Παραπομπή σε μορφή MLA (8th εκδ.)

Houtgast, Jakob. The Variations in the Profiles of Strong Fraunhofer Lines Along a Radius of the Solar Disc .. Drukkerij F. Schotanus & Jens, 1942.