planning pamphlets National policy for aviation : aircraft production, air forces, air commerce / a statement by the NPA Board of trustees and a report by the … voordeelen van invoerrechten en de weg tot verkrijging of benadering van den vrijhandel / door J. van Dusseldorp battle of the River Plate : an account of events before, during and after the action up to the self-destruction of the Admiral Graf Spee … Van wil tot daad : daden van Duitsche ontdekkers en uitvinders / Johannes Sigleur ; vert. [uit het Duits] door Frank van Overzee Guerilla in Rotterdam / door T. de W. en C. V. ; ill. van Cor van Kralingen Must we fight Russia? / Ely Culbertson hommes qui ont trahi la France / André Simone ; traduit de l'anglais par Pierre Delarue coast and geodetic survey / u.s. department of commerce Plane-coordinate systems / O.S. Adams special publication Manual of traverse computation on the Transverse Mercator Grid / O.S. Adams, C.N. Claire special publication First and second order triangulation and traverse in North Carolina (1927 datum) / O.S. Adams National security and the new army : a reference memorandum prepared to accompany an address by Lieut. Gen. J. Lawton Collins, Director of Information, War … Leitfaden für den theoretischen Reitunterricht : auf Grundlage der königl. Preuß. Reit-Instruction / bearb. von C. von Elpons