Cita APA

Sitorus, L. (2004). WINDOW ON THE WORLD English for SMA Year 1. Erlangga.

Citación estilo Chicago

Sitorus, Lungguk. WINDOW ON THE WORLD English for SMA Year 1. Erlangga, 2004.

Cita MLA

Sitorus, Lungguk. WINDOW ON THE WORLD English for SMA Year 1. Erlangga, 2004.

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