APA (7 वां संस्करण) प्रशस्ति पत्र
Wratschko, K. (2009). Strategic Orientation and Alliance Portfolio Configuration: The Interdependence of Strategy and Alliance Portfolio Management. Gabler. https://doi.org/10.1007/978-3-8349-9459-2
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्र
Wratschko, Katharina. Strategic Orientation and Alliance Portfolio Configuration: The Interdependence of Strategy and Alliance Portfolio Management. Wiesbaden: Gabler, 2009. https://doi.org/10.1007/978-3-8349-9459-2.
एमएलए (9वां संस्करण) प्रशस्ति पत्र
Wratschko, Katharina. Strategic Orientation and Alliance Portfolio Configuration: The Interdependence of Strategy and Alliance Portfolio Management. Gabler, 2009. https://doi.org/10.1007/978-3-8349-9459-2.
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