International Conference on Climbing and Walking Robots Portsmouth, U.K., & Virk, G. (1999). Proceedings of the 2nd International Conference on Climbing and Walking robots (CLAWAR 99), Flagship city of Portsmouth, Portland Building, University of Portsmouth, U.K.,13-15 September 1999. Professional Engineering Pub.
Παραπομπή σε μορφή Chicago (17η εκδ.)International Conference on Climbing and Walking Robots Portsmouth, U.K., και G.S Virk. Proceedings of the 2nd International Conference on Climbing and Walking Robots (CLAWAR 99), Flagship City of Portsmouth, Portland Building, University of Portsmouth, U.K.,13-15 September 1999. Bury St. Edmunds: Professional Engineering Pub, 1999.
Παραπομπή σε μορφή MLA (9th εκδ.)International Conference on Climbing and Walking Robots Portsmouth, U.K., και G.S Virk. Proceedings of the 2nd International Conference on Climbing and Walking Robots (CLAWAR 99), Flagship City of Portsmouth, Portland Building, University of Portsmouth, U.K.,13-15 September 1999. Professional Engineering Pub, 1999.