Graphical methods in research /

by Levens, Alexander Sander 1900-
Published 1965

Análisis gráfico para arquitectura e ingeniería /

by Levens, Alexander Sander 1900-
Published 1972

Análisis gráfico para arquitectura e ingeniería /

by Levens, Alexander Sander, 1900-
Published 1972

Graphics in engineering design /

by Levens, Alexander Sander 1900-, Levens, Alexander Sander 1900-, Chalk, William
Published 1980

Ejercicios de dibujo técnico /

by Levens, Alexander Sander 1900-, Levens, Alexander Sander 1900-, Cooper, S.J.
Published 1987