李金钢 & 于晓平. (2012). 秦岭鸟类野外实习手册: Field guide to the birds of Qinling Mountains. 科学出版社.
Chicago Style (17th ed.) Citation李金钢 and 于晓平. 秦岭鸟类野外实习手册: Field Guide to the Birds of Qinling Mountains. 科学出版社, 2012.
MLA (8th ed.) Citation李金钢 and 于晓平. 秦岭鸟类野外实习手册: Field Guide to the Birds of Qinling Mountains. 科学出版社, 2012.
Warning: These citations may not always be 100% accurate.