Lance, K. C. (1998). Colorado GED Study. How Colorado Graduates Benefit from Passing the GED Tests.
Citazione stile Chigago Style (17a edizione)Lance, Keith Curry. Colorado GED Study. How Colorado Graduates Benefit from Passing the GED Tests. 1998.
Citatione MLA (9a ed.)Lance, Keith Curry. Colorado GED Study. How Colorado Graduates Benefit from Passing the GED Tests. 1998.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.