APA

Inter-noise 81 P. 1. i., conference on noise control engineering A. & 6-8 Oct. 1981. Vol 1-2. (1981). Practice of noise control engineering. Delft: Inter-noise 81, Proceedings. 1981 international.

Chicago

Inter-noise 81 Proceedings 1981 international, conference on noise control engineering Amsterdam and 6-8 Oct. 1981. Vol 1-2. 1981. Practice of noise control engineering. Delft: Inter-noise 81, Proceedings. 1981 international.

Harvard

Inter-noise 81 P. 1. i., conference on noise control engineering A. and 6-8 Oct. 1981. Vol 1-2. (1981). Practice of noise control engineering. Delft: Inter-noise 81, Proceedings. 1981 international.

MLA

Inter-noise 81 Proceedings 1981 international, conference on noise control engineering Amsterdam and 6-8 Oct. 1981. Vol 1-2. Practice of noise control engineering. Delft: Inter-noise 81, Proceedings. 1981 international. 1981.