Cita APA (7th ed.)

ebrary, Inc, & Willis, H. H. (2010). Measuring the effectiveness of border security between ports-of-entry. Rand.

Cita Chicago (17th ed.)

ebrary, Inc, i Henry H. Willis. Measuring the Effectiveness of Border Security Between Ports-of-entry. Santa Monica, CA: Rand, 2010.

Cita MLA (9th ed.)

ebrary, Inc, i Henry H. Willis. Measuring the Effectiveness of Border Security Between Ports-of-entry. Rand, 2010.