Bibliografia
Borcard, Daniel, Francois Gillet, and Pierre Legendre. 2011. Numerical Ecology with R. doi:10.1007/978-0-387-78171-6.
Borcard, Daniel, Francois Gillet, and Pierre Legendre. 2011. Numerical Ecology with R. doi:10.1007/978-0-387-78171-6.