@article{de la Cruz Lázaro_2021, title={Portada e índice}, volume={7}, url={https://era.ujat.mx/index.php/rera/article/view/2818}, DOI={10.19136/era.a7n3.2818}, number={3}, journal={Ecosistemas y Recursos Agropecuarios}, author={de la Cruz Lázaro, Efraín}, year={2021}, month={ene.} }