00296nam a22001337a 4500003000400000020001900004082001800023100002100041245002200062250000800084260004400092300001000136650001600146SGT  a978-0333936931  a611.013bH05S  a Singh, Inderbir  aHuman Embryyology  a7TH  aDelhi India bMacmillan Publisherc2005  a1-390  aEmbryyology