Walls, C. (2011). Spring in action (3rd ed.). Manning.
Chicago Style (17th ed.) CitationWalls, Craig. Spring in Action. 3rd ed. Shelter Island: Manning, 2011.
ציטוט MLAWalls, Craig. Spring in Action. 3rd ed. Manning, 2011.
אזהרה: ציטוטים אלה לעיתים לא מדויקים ב 100%.