APA

Singer S., . (1971). The nature of vall lightning. New York: Menum Press.

Chicago

Singer Satanley, . 1971. The nature of vall lightning. New York: Menum Press.

Harvard

Singer S., . (1971). The nature of vall lightning. New York: Menum Press.

MLA

Singer Satanley, . The nature of vall lightning. New York: Menum Press. 1971.