Biggs, C. L., Birks, E. G., & Atkins, W. (1980). Managing the systems development process. Englewood Cliffs NJ: Prentice-Hall.
Чикагска система за цитиранеBiggs, Charles L., Evan G. Birks, и William Atkins. Managing the Systems Development Process. Englewood Cliffs NJ: Prentice-Hall, 1980.
MLA формат за цитиранеBiggs, Charles L., Evan G. Birks, и William Atkins. Managing the Systems Development Process. Englewood Cliffs NJ: Prentice-Hall, 1980.
Внимание: Тези цитати може да не са 100% точни.