Smith, Bruce Lannes and Lasswell, Harold D.. "Preface". Propaganda, Communication and Public Opinion, Princeton: Princeton University Press, 1946, pp. v-vii. https://doi.org/10.1515/9781400878642-001
Smith, B. & Lasswell, H. (1946). Preface. In Propaganda, Communication and Public Opinion (pp. v-vii). Princeton: Princeton University Press. https://doi.org/10.1515/9781400878642-001
Smith, B. and Lasswell, H. 1946. Preface. Propaganda, Communication and Public Opinion. Princeton: Princeton University Press, pp. v-vii. https://doi.org/10.1515/9781400878642-001
Smith, Bruce Lannes and Lasswell, Harold D.. "Preface" In Propaganda, Communication and Public Opinion, v-vii. Princeton: Princeton University Press, 1946. https://doi.org/10.1515/9781400878642-001
Smith B, Lasswell H. Preface. In: Propaganda, Communication and Public Opinion. Princeton: Princeton University Press; 1946. p.v-vii. https://doi.org/10.1515/9781400878642-001