This book contains information obtained from authentic and highly regarded sources. Reprinted material is quoted with permission, and sources are indicated. Reasonable efforts have been made to publish reliable data and information, but the author and the publishers cannot assume responsibility for the validity of all materials. Neither the author nor the publishers, nor anyone else associated with this publication, shall be liable for any loss, damage or liability directly or indirectly caused or alleged to be caused by this book - Ushbu kitobda haqiqiy va yuqori baholangan manbalardan olingan ma'lumotlar mavjud. Qayta chop etilgan material ruxsat bilan keltiriladi va manbalar ko'rsatiladi. Ishonchli ma'lumotlar va ma'lumotlarni nashr etish uchun oqilona harakatlar qilingan, ammo muallif va nashriyotchilar barcha materiallarning haqiqiyligi uchun javobgarlikni o'z zimmalariga olmaydilar. Na muallif, na noshirlar, na ushbu nashr bilan bog'liq bo'lgan boshqa hech kim to'g'ridan-to'g'ri yoki bilvosita sabab bo'lgan yo'qotish, zarar yoki javobgarlik uchun javobgar bo'lmaydi.