guide to belt frogs of Argentina, Australia, Austria, Belgium, Britain, Canada, Czechoslovakia, New Zealand / Anthony Carter guide to belt frogs of Denmark, Finland, France, Germany, Greece, Italy, Japan, Netherlands, Norway, Poland, Portugal , Spain, Switzerland, Thailand, Turkey, Yugoslavia / Anthony Carter Verslag van de commissie van advies aan zijne excellentie den minister van defensie betreffende wijzigingen van de opleiding tot beroepsofficier / [Commissie van advies inzake …