Cita APA (7th ed.)
Egerton, F. N. (2012). Roots of ecology: Antiquity to Haeckel. University of California Press.
Cita Chicago (17th ed.)
Egerton, Frank N. Roots of Ecology: Antiquity to Haeckel. Berkeley: University of California Press, 2012.
Cita MLA (9th ed.)
Egerton, Frank N. Roots of Ecology: Antiquity to Haeckel. University of California Press, 2012.
Atenció: Aquestes cites poden no estar 100% correctes.