Frankel, O. H. (1995). The conservation of plant biodiversity. Univ. Pr..
Cita Chicago (17th ed.)Frankel, Otto H. The Conservation of Plant Biodiversity. Cambridge: Univ. Pr., 1995.
Cita MLA (9th ed.)Frankel, Otto H. The Conservation of Plant Biodiversity. Univ. Pr., 1995.
Atenció: Aquestes cites poden no estar 100% correctes.