1 | | Survey methods in community medicine : epidemiological research, programme evaluation, clinical trials / J.H. Abramson, Z.H. Abramson . - 5th ed. - Edinburgh ;New York : Churchill Livingstone, 1999. - viii, 419 p. : ill. ; 22 cm Thông tin xếp giá: : G105K10: 1000180038 |