کتاب های Jan J. Boersema
Farm Health and Productivity Management of Dairy Young Stock
Siert-Jan Boersema, Joao Cannas da Silva, John Mee, Jos Noordhuizen, 2010
Applying HACCP-based Quality Risk Management on dairy farms
Jos Noordhuizen; Joao Cannas da Silva; Siert-Jan Boersema; Ana Vieira, 2007
Principles of environmental sciences
Jan J. Boersema, 2009
Principles of Environmental Sciences
Jan J. Boersema (auth.), 2009
Principles of Environmental Sciences
Jan J. Boersema, 2008
