41
by Cox, Louis Anthony
Published 2006
Springer US

42
Published 2007
Springer US

44
by Rifkin, Erik, Bouwer, Edward
Published 2007
Springer US

45
Published 2007
Springer US

46
by Ewing, Reid, Clemente, Otto
Published 2013
Island Press/Center for Resource Economics

47
Published 2014
Springer New York

48
by Selin, Helaine
Published 2014
Springer Netherlands

49
by Yadavendu, Vijay Kumar
Published 2013
Springer India

50
Published 2014
Springer New York

51
Published 2014
Springer New York

52
Published 2014
Springer Netherlands

54

55
by La Torre, Giuseppe
Published 2013
Springer US

56
Published 2013
Springer New York

57
by Desai, Murli
Published 2010
Springer Netherlands

58
Published 2014
Springer Netherlands

59
Published 2014
Springer New York

60
Published 2010
Humana Press