APA (7th ed.) Zitazioa
Stedman, R. C. (1970). What on earth's going to happen? G/L Regal books.
Chicago Style (17th ed.) Zitazioa
Stedman, Ray C. What on Earth's Going to Happen? Glendale, California: G/L Regal books, 1970.
MLA (9th ed.) Zitazioa
Stedman, Ray C. What on Earth's Going to Happen? G/L Regal books, 1970.
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