buidoras en todas partes del mundo. Consulte a su librero o dirfjase a: Naciones Unides. SeceiBn de Ventas. Nueva York o Ginebra. Litho in United Nations, New York Price: $U.S. 1.00 (or equivalent in other currencies) 73-022 1 &January 19774,200 
**Analysis**
The text appears to be an official publication or brochure of the United Nations, promoting the availability of a publication about buidoras (which is likely a typo and meant to be "buildings" or "construction") worldwide. The mention of "Naciones Unides" (United Nations) and the addresses in New York and Geneva suggest an international organization's publication.

**Category**
International trade, Culture