Bellman, R., Buell, J. D., & Kalaba, R. E. (1964). Numerical integration of a differential-difference equation with a decreasing time-lag. Rand Corporation.
Chicago Style (17th ed.) CitationBellman, Richard, J. D. Buell, and Robert E. Kalaba. Numerical Integration of a Differential-difference Equation with a Decreasing Time-lag. Santa Monica, Calif.: Rand Corporation, 1964.
MLA (9th ed.) CitationBellman, Richard, et al. Numerical Integration of a Differential-difference Equation with a Decreasing Time-lag. Rand Corporation, 1964.
Warning: These citations may not always be 100% accurate.