Lean Network Academy. (2023). White paper: Earn money creating audiobooks. Cervantes Digital.
芝加哥风格引文Lean Network Academy. White Paper: Earn Money Creating Audiobooks. Madrid: Cervantes Digital, 2023.
MLA引文Lean Network Academy. White Paper: Earn Money Creating Audiobooks. Cervantes Digital, 2023.
警告：这些引文格式不一定是100％准确.