Collier's Encyclopedia, de es, Vários. Editorial Collier, tapa dura, 1962

Enciclopedia divida en 24 tomos completamente en inglés.
ESTADO DE LOS LIBROS: Regular/ Malo. El tiempo afectó mucho a toda la colección. La humedad del ambiente y el encierro provocaron no sólo sectores amarillentos, sino especialmente desprendimientos, páginas carcomidas, algunas páginas pegadas y demás cuestiones.
CONDITION OF THE BOOKS: Regular / Bad. The weather affected the whole collection a lot. The humidity of the environment and the confinement provoked not only yellowish sectors, but especially detachments, decayed pages, some stuck pages and other things.
Synopsis:
Collier's Encyclopedia is a schorlarly, systematic, continuously revised summary ofe the knowledge that is most significant to mankingd. This 24 volume edition has been designed and built to fill the needs of the most exacting school and home users. I is arranged alphabetically, indexed analytically, ilustrated to enrich and clarify the printed text, and supplemented by an 11,500 title bibliography specially designed to assiste the person who seek tho further his educaction.