De Haas, W. G. L. (1969). Two technologies: Public lecture delivered on the occasion of his appointment as lector in sociology at the International Institute for Aerial Survey and Earthsciences (ITC), Delft, on Thursday, January 23RD, 1969. Uitgeverij Waltman.
Cita Chicago Style (17a ed.)De Haas, W. G. L. Two Technologies: Public Lecture Delivered on the Occasion of His Appointment as Lector in Sociology at the International Institute for Aerial Survey and Earthsciences (ITC), Delft, on Thursday, January 23RD, 1969. Delft: Uitgeverij Waltman, 1969.
Cita MLA (9a ed.)De Haas, W. G. L. Two Technologies: Public Lecture Delivered on the Occasion of His Appointment as Lector in Sociology at the International Institute for Aerial Survey and Earthsciences (ITC), Delft, on Thursday, January 23RD, 1969. Uitgeverij Waltman, 1969.
