1. The successful supervisor in government and business
Author: / by William R. Van Dersal.,وندرسال,Van Dersal
Library: National Library and Archives of Islamic Republic of Iran (Tehran)
Subject: کارکنان, -- سرپرستی
Classification :
HF
۵۵۴۹
/
و
۹
س
۲ ۱۳۴۹
2. The land renewed ; the story of soil conservation
Author: / by William R. Van Dersal, Edward H. Graham
Library: University of Tabriz Library, Documentation and Publication Center (East Azarbaijan)
Subject: Soil conservation -U.S.,Erosion,Soil erosion-U.S.
Classification :
S623
.
V21
3. The land renewes
Author: / By william R.Van Dersal and Esward H.Graham.
Library: Faculty of Geography Library, University of Tehran (Tehran)
Subject: Soil conservation--United States.,Erosion.,Soil erosion--United States.
Classification :
S623
.
A1V35
1957
4. <The> successful supervisor in government and business
Author: / by william R. Van Dersal
Library: Central Library and Documents Center of Mazandaran University (Mazandaran)
Subject: Supervision of employees
Classification :
HF5549
.
V29
