Citazione APA

Grubb, W. N. (1996). Working in the middle: Strengthening education and training for the mid-skilled labor force. Jossey-Bass.

Stile di citazione Chicago

Grubb, W Norton. Working in the Middle: Strengthening Education and Training for the Mid-skilled Labor Force. San Francisco: Jossey-Bass, 1996.

Citazione MLA

Grubb, W Norton. Working in the Middle: Strengthening Education and Training for the Mid-skilled Labor Force. Jossey-Bass, 1996.