@Misc{BVMC:976736,
author = {Laín Entralgo, Pedro},
title = {El conocimiento científico del medio ambiente},
publisher = {Alicante : Biblioteca Virtual Miguel de Cervantes, 2019},
year = {2019},
url = {https://www.cervantesvirtual.com/nd/ark:/59851/bmc0976736}
}