Search Results       Your search for [author]Ortiz, Domingo de la Pena returned 1 record.           Design, construction and testing of and animal-drawn rotary harrow. by Ortiz, Domingo de la Pena; Munoz, Nueva Ecija: CLSU, 1971. 15p. Subject: EQUIPMENT; HARROWING; DESIGN; EVALUATION; COST ANALYSIS.          Add to Book Cart Relevance: 31.23%