APA (7th ed.) Citation

(1951). Regulus. natur&ëmwelt a.s.b.l.

Chicago Style (17th ed.) Citation

Regulus. Kockelscheuer: natur&ëmwelt a.s.b.l, 1951.

MLA (9th ed.) Citation

Regulus. natur&ëmwelt a.s.b.l, 1951.

Warning: These citations may not always be 100% accurate.