Unknown. (2023). The naturalists directory. Samuel E. Cassino, U.S.A.
Cita Chicago (17th ed.)Unknown. The Naturalists Directory. Samuel E. Cassino, U.S.A, 2023.
Cita MLA (9th ed.)Unknown. The Naturalists Directory. Samuel E. Cassino, U.S.A, 2023.
Atenció: Aquestes cites poden no estar 100% correctes.