Shaw, G. (1790). The Canine Boa or Dog-Headed Snake, Boa canina [Pl. 24]. Zenodo.
Cita Chicago (17th ed.)Shaw, George. The Canine Boa or Dog-Headed Snake, Boa Canina [Pl. 24]. Zenodo, 1790.
Cita MLA (9th ed.)Shaw, George. The Canine Boa or Dog-Headed Snake, Boa Canina [Pl. 24]. Zenodo, 1790.
Atenció: Aquestes cites poden no estar 100% correctes.