Privately Published by Boonsong Lekagul, MD. Printed by Ramen Press, Bangkok. 1968. 271 pages. First edition, first printing. Profusely illustrated in color by the author. 

first edition, first printing of what is considered the Holy Grail of SE Asia's field guides for birds. A newer edition would be republished six years later in 1974. ...... with error slips and hand pasted address and titles