001: 26220
003: Starlibrary PMS 4.5
005: 20180430
020: ^a333901142
066: ^aIN.h
072: ^aformation of germ layers
082: ^a612.64
100: ^aINDERBIR SINGH
240: ^ahuman embryology
245: ^ahuman embryology
260: ^c1989
650: ^athe male and female gametes
650: ^athe menstrual cycle