What is a green flash, and how can I see one? / Willard Cowen. - Asia Edition. - Singapore: JSIM Education, 2022. - 88 page. - BBC Earth. Do You Know? Vol. 15 (2). 2737-5560 . ISSN: 2737-5560 Subjects--Topical Terms: Light. Dewey Class. No.: BBC Earth C8389 2022