APA (7 ম সংস্করণ) উদ্ধৃতি

(美)弗里茨·吉尔伯特(Fritz Gilbert)著. (2023). 老后无忧：退休规划与心理健康指南：staying happy, active, and productive in your retired years. 中信出版集团.

শিকাগো স্টাইল (17 তম সংস্করণ) উদ্ধৃতি

(美)弗里茨·吉尔伯特(Fritz Gilbert)著. 老后无忧：退休规划与心理健康指南：staying Happy, Active, and Productive in Your Retired Years. 中信出版集团, 2023.

M.L.A (8 ম সংস্করণ) উদ্ধৃতি

(美)弗里茨·吉尔伯特(Fritz Gilbert)著. 老后无忧：退休规划与心理健康指南：staying Happy, Active, and Productive in Your Retired Years. 中信出版集团, 2023.