APA

National Roads Board N. Z. R. R. U. [. b. n. 4., . (1979). Bridge design and research. Seminar. Wellington: National Roads Board, New Zealand. Road Research Unit [RRU] bulletin no 44.

Chicago

National Roads Board New Zealand Road Research Unit [RRU] bulletin no 44, . 1979. Bridge design and research. Seminar. Wellington: National Roads Board, New Zealand. Road Research Unit [RRU] bulletin no 44.

Harvard

National Roads Board N. Z. R. R. U. [. b. n. 4., . (1979). Bridge design and research. Seminar. Wellington: National Roads Board, New Zealand. Road Research Unit [RRU] bulletin no 44.

MLA

National Roads Board New Zealand Road Research Unit [RRU] bulletin no 44, . Bridge design and research. Seminar. Wellington: National Roads Board, New Zealand. Road Research Unit [RRU] bulletin no 44. 1979.