Shlaer, S., & Mellor, S. J. [ca. 1992]. Object lifecycles : modeling the world in states. In Yourdon Press computing series [Book]. Englewood Cliffs, NJ: Yourdon Press.

SHLAER, Sally und MELLOR, Stephen J., 1992. Object lifecycles : modeling the world in states. Englewood Cliffs, NJ: Yourdon Press. ISBN 0136299407.

Shlaer, S., und S. J. Mellor. „Object lifecycles : modeling the world in states“. Yourdon Press computing series, book, Yourdon Press, 1992.

Shlaer, Sally/Mellor, Stephen J.: Object lifecycles : modeling the world in states, Englewood Cliffs, NJ 1992.

Shlaer, S. und Mellor, S.J. (1992), Object lifecycles : modeling the world in states, Yourdon Press computing series, Bd. , Yourdon Press, Englewood Cliffs, NJ.