Cita APA (7th ed.)
Harry, H. W., & Hubendick, B. (1964). The Freshwater Pulmonate Mollusca of Puerto Rico.
Cita Chicago (17th ed.)
Harry, Harold W., i Bengt Hubendick. The Freshwater Pulmonate Mollusca of Puerto Rico. Göteborg, 1964.
Cita MLA (9th ed.)
Harry, Harold W., i Bengt Hubendick. The Freshwater Pulmonate Mollusca of Puerto Rico. 1964.
Atenció: Aquestes cites poden no estar 100% correctes.