Here are a few options to find the solucionario:
You're looking for a solution manual or "solucionario" for the 8th edition of the fluid mechanics book by Fox. solucionario fox mecanica de fluidos 8va edicion
The book you're referring to is likely "Fluid Mechanics" by Frank M. White and Robert J. Fox, now in its 8th edition. The solution manual, or "solucionario" in Spanish, is a companion resource that provides detailed solutions to the problems and exercises presented in the textbook. Here are a few options to find the