APA (7th ed.) Citation

Harahap,Effendi. (1954). Grammar Conversation / A.Effendi Harahap. Effendi Harahap.

Chicago Style (17th ed.) Citation

Harahap,Effendi. Grammar Conversation / A.Effendi Harahap. Effendi Harahap, 1954.

MLA (8th ed.) Citation

Harahap,Effendi. Grammar Conversation / A.Effendi Harahap. Effendi Harahap, 1954.

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