APA (7th ed.) Citation

Chen, J. (1957). Summation of the Fourier series of orthogonal functions. Science Press.

Chicago Style (17th ed.) Citation

Chen, Jian'gong. Summation of the Fourier Series of Orthogonal Functions. Peking: Science Press, 1957.

MLA (9th ed.) Citation

Chen, Jian'gong. Summation of the Fourier Series of Orthogonal Functions. Science Press, 1957.