Document 1787
Woronecki, P.P. 1988. Effect of ultrasonic, visual, and sonic devices on pigeon numbers in a vacant building. Proceedings of the Vertebrate Pest Conference 13:266-272.
Woronecki, P.P. 1988. Effect of ultrasonic, visual, and sonic devices on pigeon numbers in a vacant building. Proceedings of the Vertebrate Pest Conference 13:266-272.
