"townsed, gilbert . "
steel square: / gilbert.. townsed - 2 ed. - usa : american technical soc... 1947. - ", 172p.; 21 cm."
hard cover
TH5619.T6 1947
steel square: / gilbert.. townsed - 2 ed. - usa : american technical soc... 1947. - ", 172p.; 21 cm."
hard cover
TH5619.T6 1947