TY - RPRT TI - Bacteriophage lambda cloning system for the construction of directional cDNA libraries. AU - P S Meissner AU - W P Sisk AU - M L Berman PY - 1987 DO - 10.1073/pnas.84.12.4171 UR - https://pubmed.ncbi.nlm.nih.gov/2438693/ ID - 2438693 ER -