1. Mid-winter numbers of waterbirds in Bulgaria (1977-2001) :
پدیدآورنده : Tanyo Michev & Lyubomir Profirov.
کتابخانه: Center and Library of Islamic Studies in European Languages (Qom)
موضوع : Water birds-- Bulgaria.,Wetlands-- Bulgaria.,NATURE-- Animals-- Birds.,NATURE-- Birdwatching Guides.,SCIENCE-- Life Sciences-- Zoology-- Ornithology.,Water birds.,Wetlands.,Bulgaria., 7
رده :
QL690
.
B9
M53
2003eb
