APA

Ramsey W. L., . (1986). Physical science. New York: Holt, Rinehart and Winston.

Chicago

Ramsey William L, . 1986. Physical science. New York: Holt, Rinehart and Winston.

Harvard

Ramsey W. L., . (1986). Physical science. New York: Holt, Rinehart and Winston.

MLA

Ramsey William L, . Physical science. New York: Holt, Rinehart and Winston. 1986.