Hello,


Books for Developmental Biology :

• Developmental Biology by Scott F Gilbert and Susan R Singer
• Developmental Biology: A Very Short Introduction by Lewis Wolpert

Books for Embryology :

• Vishram Singh clinical embryology
• Langman's textbook of Embryology

I more thing i would like to mention you is that embryology is very difficult subject to understand so i would say you must watch some YouTube videos to understand or a reference

I hope this helps.