Szymanski, J. (2019). Code this!: Puzzles, games, challenges, and computer coding concepts for the problem-solver in you! National Geographic.
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)Szymanski, Jennifer. Code This!: Puzzles, Games, Challenges, and Computer Coding Concepts for the Problem-solver in You! Washington, D.C.: National Geographic, 2019.
توثيق جمعية اللغة المعاصرة MLA (الطبعة الثامنة)Szymanski, Jennifer. Code This!: Puzzles, Games, Challenges, and Computer Coding Concepts for the Problem-solver in You! National Geographic, 2019.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.