I wonder why tunnels are round, and other questions about building /
624 PAR
Parker, Steve
I wonder why tunnels are round, and other questions about building / Steve Parker.- London:Kingfisher Publications Plc,2007.New Delhi:Grolier International (P) Ltd.,2007.
32p.:col. ill;28 cm. (Hb)
-(I wonder why).
Note: It is a set of 24 vols. Note: includes index
ISBN:0753405229 Rs. 10312.50 (set)
Grolier International (P) Ltd. / 27.5.08 / 12 / 8.4.08 / 5.6.08 /B-270059-064/ B-270060 / 10312.50 /sign B-270063 / 10312.50 /sign B-270064 / 10312.50 /sign B-270062 / 10312.50 /sign B-270059 / 10312.50 /sign B-285166 / 10312.00 /sign B-270061 / 10312.50 /sign