Geschiedeniswerkplaats / J. Beetsma. Leerlingenboek / J. Beetsma : 1: De koude oorlog Geschiedeniswerkplaats / J. Beetsma. Leerlingenboek / J. Beetsma : 5: Verenigde Staten 1917-1941 Field officer course : Unit organisation / Air University. Air command and staff school. Vol. 1 Field officer course : Communication techniques / Air University. Air command and staff school Field officer course : Personnel / Air University. Air command and staff school Field officer course : Special staff agencies / Air University. Air command and staff school. Vol. 10: Special Staff Divisions 20th century war: the american experience / Robert H. Berlin Field officer course : Intelligence-A Staff Function / Air University. Air command and staff school. Vol. 7: Intelligence Staff Division Field officer course : Organization / Air University. Air command and staff school. Vol. 1 Field officer course : Production and Dissemination of Intelligence / Air University. Air command and staff school. Vol. 7: Intelligence Staff Division Field officer course : Employment of land forces / Air University. Air command and staff school. Vol. 12: Operation Staff Division Field officer course : Weather / Air University. Air command and staff school. Vol. 5: Operations Staff division