APA

Beam W. R., . (1990). Systems engineering. New York: McGraw Hill publishing company.

Chicago

Beam Walter R, . 1990. Systems engineering. New York: McGraw Hill publishing company.

Harvard

Beam W. R., . (1990). Systems engineering. New York: McGraw Hill publishing company.

MLA

Beam Walter R, . Systems engineering. New York: McGraw Hill publishing company. 1990.