APA
CB Hillier Parker, . (2001). Central London office market : market index brief. - Quarter 1-4 2001. London: CB Hillier Parker.
Chicago
CB Hillier Parker, . 2001. Central London office market : market index brief. - Quarter 1-4 2001. London: CB Hillier Parker.
Harvard
CB Hillier Parker, . (2001). Central London office market : market index brief. - Quarter 1-4 2001. London: CB Hillier Parker.
MLA
CB Hillier Parker, . Central London office market : market index brief. - Quarter 1-4 2001. London: CB Hillier Parker. 2001.