Analysis of information sources in references of the Wikipedia article "Humpback whale" in English language version.
Before protection by international agreement in 1966, the world-wide population of humpback whales had been reduced by hunting to <5000, with some regional subpopulations reduced to <200...
Before protection by international agreement in 1966, the world-wide population of humpback whales had been reduced by hunting to <5000, with some regional subpopulations reduced to <200...
Before protection by international agreement in 1966, the world-wide population of humpback whales had been reduced by hunting to <5000, with some regional subpopulations reduced to <200...
Before protection by international agreement in 1966, the world-wide population of humpback whales had been reduced by hunting to <5000, with some regional subpopulations reduced to <200...