"allan, a l. "
practical field surveying and computations: / a.l. allan - 2 ed. - uk : heinemann 1982. - "xvi, 689p.; 24 cm."
434 90061 3 hard cover
--
526. 9 all
practical field surveying and computations: / a.l. allan - 2 ed. - uk : heinemann 1982. - "xvi, 689p.; 24 cm."
434 90061 3 hard cover
--
526. 9 all