Gaya APA

Wodtke, C, R. (2016). Radical Focus: Achieving Your Most Important Goals with Objectives and Key Results (Edisi Pertama). San Bernardino: Cucina Media LLC.

Gaya MLA

Wodtke, Christina, R.. "Radical Focus: Achieving Your Most Important Goals with Objectives and Key Results". Edisi Pertama San Bernardino: Cucina Media LLC, 2016. Text.