Walker, E.A. . (). Environmental N-Nitroso compounds analysis and formation. Proceedings of a working conference held at the polytechnical institute, Tallinn, Estonian SSR 1-3 Ock. 1975 E.A. Walker. : Lyon Int. Agency for Research on Cancer 1975, 76

Walker, E.A. . Environmental N-Nitroso compounds analysis and formation. Proceedings of a working conference held at the polytechnical institute, Tallinn, Estonian SSR 1-3 Ock. 1975 E.A. Walker. : Lyon Int. Agency for Research on Cancer 1975, 76,

Walker, E.A. . . Environmental N-Nitroso compounds analysis and formation. Proceedings of a working conference held at the polytechnical institute, Tallinn, Estonian SSR 1-3 Ock. 1975 E.A. Walker. Lyon Int. Agency for Research on Cancer 1975, 76,