Gaya APA

Newton, D. (2016). Severe weather flying : increase your knowledge and skill in avoidance of thunderstorms, icing, and severe weather (Ed. 4). Washington: Aviation Supplies and Academic, Inc.

Gaya MLA

Newton, Dennis. "Severe weather flying : increase your knowledge and skill in avoidance of thunderstorms, icing, and severe weather". Ed. 4 Washington: Aviation Supplies and Academic, Inc, 2016. Text.