APA (7th ed.) Citation

Castro, D. d. Ideal letters: Personal, career, business...or any kind. Sunrise Publishers.

Chicago Style (17th ed.) Citation

Castro, Doreen de. Ideal Letters: Personal, Career, Business...or Any Kind. India: Sunrise Publishers.

MLA (9th ed.) Citation

Castro, Doreen de. Ideal Letters: Personal, Career, Business...or Any Kind. Sunrise Publishers.

Warning: These citations may not always be 100% accurate.