Ruhalla, J., Krans, J., Goatley, M. Sports Fields : A Manual for Design, Construction and Maintenance. New Jersey: John Wiley & Sons, 1999 46 p. 1-57504-070-0.
Ruhalla, J., Krans, J., Goatley, M. Sports Fields : A Manual for Design, Construction and Maintenance. New Jersey: John Wiley & Sons, 1999 46 p. 1-57504-070-0.
Ruhalla, J., Krans, J., Goatley, M. (1999) Sports Fields : A Manual for Design, Construction and Maintenance, New Jersey: John Wiley & Sons 46 p. 1-57504-070-0.
Ruhalla, J., Krans, J., & Goatley, M. (1999). Sports Fields : A Manual for Design, Construction and Maintenance. New Jersey: John Wiley & Sons, 46 p.
Ruhalla J, Krans J, Goatley M. Sports Fields : A Manual for Design, Construction and Maintenance. New Jersey: John Wiley & Sons; 1999. p. 46 p. ISBN: 1-57504-070-0.