The razor's edge boundaries and boundry disputes in Southeast Asia. by Lee Yong Leng

Solvability of nonlinear equations and boundary value problems. by Fucik, Satopluk

Boundary-layer theory by Schlichting, Hermann 1907-

The planetary boundary layer

Differential equations by Wylie, Clarence Raymond, 1911-

Register of international rivers prepared by the Centre for Natural Resources, Energy and Transport of the Department of Economic and Social Affairs of the United Nations.

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The Sino-Soviet territorial dispute, 1949-64 by Ginsburgs, George

Boundary-interior layer interactions in nonlinear singular perturbation theory by Howes, Frederick A. 1948-

Frontiers of Asia and Southeast Asia by Prescott, J. R. V. (John Robert Victor)

Human settlements Philippine frontier settlements models