أجريس - النظام الدولي للعلوم الزراعية والتكنولوجيا

[ نُشرت في: "Consumer education development program, a national study" ]
بحث متقدّم

خيارات البحث

النتائج 1 - 2 من 2

Current and future purposes and objectives of consumer education

1979

Willett, Sandra L.

National Agricultural Library - United States of America

Effective consumer education programs, report on question I of the consumer education development program

1979

Monsma, Charles | Bannister, Rosella

National Agricultural Library - United States of America