APA

birch N. . H., bramson A. . E., . (1978). radio aids to air navigation. london: pitman.

Chicago

birch N H, bramson A E, . 1978. radio aids to air navigation. london: pitman.

Harvard

birch N. . H., bramson A. . E., . (1978). radio aids to air navigation. london: pitman.

MLA

birch N H, bramson A E, . radio aids to air navigation. london: pitman. 1978.