Zur Effektivität von Schüler-Streitschlichter-Programmen an vier unterfränkischen Hauptschulen unter Einbeziehung der Schulsozialarbeit Frank Albert E-Book (epub)

An Article about Spraying Solutions Used to Control Pests and Diseases of the Apple Tree in the Past Frank Albert Waugh E-Book (epub)

Insect Enemies and Diseases of the Peach Tree and its Fruit with Information on Spraying Pesticides and Fungicides Frank Albert Waugh E-Book (epub)