Cita APA (7th ed.)
Watt, K. R. (1974). A Catalogue of the Sipuncula, Echiura and Priapulida in the collections of the Royal Scottish Museum, Edinburgh.
Cita Chicago (17th ed.)
Watt, Kenneth Ross. A Catalogue of the Sipuncula, Echiura and Priapulida in the Collections of the Royal Scottish Museum, Edinburgh. 1974.
Cita MLA (9th ed.)
Watt, Kenneth Ross. A Catalogue of the Sipuncula, Echiura and Priapulida in the Collections of the Royal Scottish Museum, Edinburgh. 1974.
Atenció: Aquestes cites poden no estar 100% correctes.