Sømme, L., & Kalas, S. (1988). The penguin family book. Picture Book Studio.
Chicago Style (17th ed.) CitationSømme, Lauritz, and Sybille Kalas. The Penguin Family Book. Saxonville, Mass.: Picture Book Studio, 1988.
MLA (9th ed.) CitationSømme, Lauritz, and Sybille Kalas. The Penguin Family Book. Picture Book Studio, 1988.
Warning: These citations may not always be 100% accurate.