APA
Neufville R. d., Ayala U. j. a., Acevedo J. j. a. & Mira L. j. a. (1973). Role of air transportation in sparsely developed areas. Cambridge: Institute of Technology, Civil engingeering.
Chicago
Neufville Richard de, Ayala Ulpiano jt author, Acevedo Jorge jt author and Mira Luis jt author. 1973. Role of air transportation in sparsely developed areas. Cambridge: Institute of Technology, Civil engingeering.
Harvard
Neufville R. d., Ayala U. j. a., Acevedo J. j. a. and Mira L. j. a. (1973). Role of air transportation in sparsely developed areas. Cambridge: Institute of Technology, Civil engingeering.
MLA
Neufville Richard de, Ayala Ulpiano jt author, Acevedo Jorge jt author and Mira Luis jt author. Role of air transportation in sparsely developed areas. Cambridge: Institute of Technology, Civil engingeering. 1973.