"ingalls, albert g. "
amateur telescope making book 1: / albert.g. ingalls - 4 ed. - usa : scientific american 1959. - "xii, 510p.; 19 cm."
hard cover
QB88 / .A62 1959
amateur telescope making book 1: / albert.g. ingalls - 4 ed. - usa : scientific american 1959. - "xii, 510p.; 19 cm."
hard cover
QB88 / .A62 1959