study coordinators and editors, A.R. Omran and C.C. Standley ; principal investigators, G. Ochoa
World Health Organization, 1981
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Shafer, Robert
[publisher not identified], [date of publication not identified]
Buku Teks
Rogers, Margaret
Oceana Publications, 1969
Buku Teks
Macneil, Ian R.
[Publisher not identified], 1966
Buku Teks
Lockman, Zachary
Cambridge, 2004
Buku Teks