Wallis, W. D., Street, A. P., & Seberry, J. (1972). Combinatorics: Room squares, sum-free sets, hadamard matrices. Springer.
Chicago Style (17th ed.) CitationWallis, Walter D., Anne Penfold Street, and Jennifer Seberry. Combinatorics: Room Squares, Sum-free Sets, Hadamard Matrices. Berlin ; Heidelberg ; New York: Springer, 1972.
MLA (9th ed.) CitationWallis, Walter D., et al. Combinatorics: Room Squares, Sum-free Sets, Hadamard Matrices. Springer, 1972.
Warning: These citations may not always be 100% accurate.