Abram Rutgers

• Budgerigars in colour
• Encyclopaedia of aviculture
• Encyclopaedia of aviculture
• The handbook of foreign birds in colour
• Australische papegaaien en parkieten
• Budgerigars in colour: their care and breeding
• Encyclopaedia of Aviculture
• Encyclopaedia of aviculture
• Grand manuel de canariculture
• Handbook of Foreign Birds
• Het grote kanarieboek
• The care and breeding of budgerigars