fundamentos y procedimientos para una valoración Escobar Carballal, Sarah T. creator text bibliography ag Buenos Aires Alfagrama Ediciones 2006 1a ed. monographic spa 185 p. ill. 23 cm. specialized Sarah T. Escobar Carballal. Bibliography:p. 177-185. Acquisitions Libraries Costs Collection development (Libraries) Acquisitions Libraries Evaluation Z 689 E83.2006 9872207461 UIA 060301 20220124140140.0 278573 spa